87913131400 has 48 divisors (see below), whose sum is σ = 204468944400. Its totient is φ = 35153052480.

The previous prime is 87913131391. The next prime is 87913131401. The reversal of 87913131400 is 413131978.

It is a self number, because there is not a number n which added to its sum of digits gives 87913131400.

It is not an unprimeable number, because it can be changed into a prime (87913131401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 513019 + ... + 662581.

It is an arithmetic number, because the mean of its divisors is an integer number (4259769675).

Almost surely, 2^87913131400 is an apocalyptic number.

It is an amenable number.

87913131400 is an abundant number, since it is smaller than the sum of its proper divisors (116555813000).

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

87913131400 is a wasteful number, since it uses less digits than its factorization.

87913131400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152518 (or 152509 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 87913131400 in words is "eighty-seven billion, nine hundred thirteen million, one hundred thirty-one thousand, four hundred".