87520354432 has 64 divisors (see below), whose sum is σ = 199334226240. Its totient is φ = 37495710720.

The previous prime is 87520354429. The next prime is 87520354433. The reversal of 87520354432 is 23445302578.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (87520354433) 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, 2834823 + ... + 2865529.

It is an arithmetic number, because the mean of its divisors is an integer number (3114597285).

Almost surely, 2^87520354432 is an apocalyptic number.

It is an amenable number.

87520354432 is an abundant number, since it is smaller than the sum of its proper divisors (111813871808).

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

87520354432 is a wasteful number, since it uses less digits than its factorization.

87520354432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33909 (or 33897 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 87520354432 in words is "eighty-seven billion, five hundred twenty million, three hundred fifty-four thousand, four hundred thirty-two".