87565135404 has 12 divisors (see below), whose sum is σ = 204318649304. Its totient is φ = 29188378464.

The previous prime is 87565135393. The next prime is 87565135421. The reversal of 87565135404 is 40453156578.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648547297 + ... + 3648547320.

Almost surely, 2^87565135404 is an apocalyptic number.

It is an amenable number.

87565135404 is an abundant number, since it is smaller than the sum of its proper divisors (116753513900).

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

87565135404 is a wasteful number, since it uses less digits than its factorization.

87565135404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7297094624 (or 7297094622 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 87565135404 in words is "eighty-seven billion, five hundred sixty-five million, one hundred thirty-five thousand, four hundred four".