878812350573663 has 24 divisors (see below), whose sum is σ = 1384836422533200. Its totient is φ = 532597698322560.

The previous prime is 878812350573653. The next prime is 878812350573727. The reversal of 878812350573663 is 366375053218878.

878812350573663 is a `hidden beast` number, since 8 + 7 + 8 + 8 + 1 + 23 + 505 + 7 + 36 + 63 = 666.

It is not a de Polignac number, because 878812350573663 - 2³⁸ = 878537472666719 is a prime.

It is a super-2 number, since 2×878812350573663² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 878812350573591 and 878812350573600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878812350573653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128717838 + ... + 135373211.

It is an arithmetic number, because the mean of its divisors is an integer number (57701517605550).

Almost surely, 2^{878812350573663} is an apocalyptic number.

878812350573663 is a deficient number, since it is larger than the sum of its proper divisors (506024071959537).

878812350573663 is a wasteful number, since it uses less digits than its factorization.

878812350573663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264124679 (or 264124676 counting only the distinct ones).

The product of its (nonzero) digits is 1219276800, while the sum is 72.

The spelling of 878812350573663 in words is "eight hundred seventy-eight trillion, eight hundred twelve billion, three hundred fifty million, five hundred seventy-three thousand, six hundred sixty-three".