87911288711568 has 80 divisors (see below), whose sum is σ = 288386238111360. Its totient is φ = 25117511059584.

The previous prime is 87911288711537. The next prime is 87911288711681. The reversal of 87911288711568 is 86511788211978.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 87911288711496 and 87911288711505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14535593655 + ... + 14535599702.

It is an arithmetic number, because the mean of its divisors is an integer number (3604827976392).

Almost surely, 2^{87911288711568} is an apocalyptic number.

It is an amenable number.

87911288711568 is an abundant number, since it is smaller than the sum of its proper divisors (200474949399792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87911288711568 is a wasteful number, since it uses less digits than its factorization.

87911288711568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29071193381 (or 29071193369 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 72.

The spelling of 87911288711568 in words is "eighty-seven trillion, nine hundred eleven billion, two hundred eighty-eight million, seven hundred eleven thousand, five hundred sixty-eight".