228715377870545 has 8 divisors (see below), whose sum is σ = 275656961976360. Its totient is φ = 182173296608640.

The previous prime is 228715377870503. The next prime is 228715377870571. The reversal of 228715377870545 is 545078773517822.

It can be written as a sum of positive squares in 4 ways, for example, as 9766181257921 + 218949196612624 = 3125089^2 + 14796932^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228715377870545 - 2¹⁶ = 228715377805009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99875709716 + ... + 99875712005.

It is an arithmetic number, because the mean of its divisors is an integer number (34457120247045).

Almost surely, 2^{228715377870545} is an apocalyptic number.

It is an amenable number.

228715377870545 is a deficient number, since it is larger than the sum of its proper divisors (46941584105815).

228715377870545 is a wasteful number, since it uses less digits than its factorization.

228715377870545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199751421955.

The product of its (nonzero) digits is 921984000, while the sum is 71.

It can be divided in two parts, 228715377 and 870545, that added together give a palindrome (229585922).

The spelling of 228715377870545 in words is "two hundred twenty-eight trillion, seven hundred fifteen billion, three hundred seventy-seven million, eight hundred seventy thousand, five hundred forty-five".