87156919356 has 48 divisors (see below), whose sum is σ = 220233283200. Its totient is φ = 26667686592.

The previous prime is 87156919327. The next prime is 87156919379. The reversal of 87156919356 is 65391965178.

It is a self number, because there is not a number n which added to its sum of digits gives 87156919356.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1532686 + ... + 1588533.

It is an arithmetic number, because the mean of its divisors is an integer number (4588193400).

Almost surely, 2^87156919356 is an apocalyptic number.

It is an amenable number.

87156919356 is an abundant number, since it is smaller than the sum of its proper divisors (133076363844).

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

87156919356 is a wasteful number, since it uses less digits than its factorization.

87156919356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121418 (or 3121416 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 60.

The spelling of 87156919356 in words is "eighty-seven billion, one hundred fifty-six million, nine hundred nineteen thousand, three hundred fifty-six".