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878431048123364 = 221741315075698753
BaseRepresentation
bin1100011110111011011010101…
…0100101010100001111100100
311021012021012002002121212021022
43013232312222211110033210
51410114203241304421424
612352133352534510312
7353012356160061341
oct30756665245241744
94235235062555238
10878431048123364
1123499357401962a
12826319a4805398
132b91c9002860c8
14116cc40a87b7c8
156b8501a22595e
hex31eedaa9543e4

878431048123364 has 24 divisors (see below), whose sum is σ = 1667380597806168. Its totient is φ = 403296894402560.

The previous prime is 878431048123327. The next prime is 878431048123367. The reversal of 878431048123364 is 463321840134878.

It can be written as a sum of positive squares in 4 ways, for example, as 32424483062500 + 846006565060864 = 5694250^2 + 29086192^2 .

It is a super-2 number, since 2×8784310481233642 (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 878431048123297 and 878431048123306.

It is not an unprimeable number, because it can be changed into a prime (878431048123367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157537846589 + ... + 157537852164.

It is an arithmetic number, because the mean of its divisors is an integer number (69474191575257).

Almost surely, 2878431048123364 is an apocalyptic number.

It is an amenable number.

878431048123364 is a deficient number, since it is larger than the sum of its proper divisors (788949549682804).

878431048123364 is a wasteful number, since it uses less digits than its factorization.

878431048123364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315075698815 (or 315075698813 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 62.

The spelling of 878431048123364 in words is "eight hundred seventy-eight trillion, four hundred thirty-one billion, forty-eight million, one hundred twenty-three thousand, three hundred sixty-four".

Divisors: 1 2 4 17 34 41 68 82 164 697 1394 2788 315075698753 630151397506 1260302795012 5356286878801 10712573757602 12918103648873 21425147515204 25836207297746 51672414595492 219607762030841 439215524061682 878431048123364