87679721376 has 120 divisors (see below), whose sum is σ = 277699395204. Its totient is φ = 26978365440.

The previous prime is 87679721359. The next prime is 87679721387. The reversal of 87679721376 is 67312797678.

It can be written as a sum of positive squares in 2 ways, for example, as 87675210000 + 4511376 = 296100^2 + 2124^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1267345 + ... + 1334736.

Almost surely, 2^87679721376 is an apocalyptic number.

It is an amenable number.

87679721376 is an abundant number, since it is smaller than the sum of its proper divisors (190019673828).

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

87679721376 is a wasteful number, since it uses less digits than its factorization.

87679721376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602116 (or 2602099 counting only the distinct ones).

The product of its digits is 37340352, while the sum is 63.

The spelling of 87679721376 in words is "eighty-seven billion, six hundred seventy-nine million, seven hundred twenty-one thousand, three hundred seventy-six".