87913932806 has 64 divisors (see below), whose sum is σ = 158862556800. Its totient is φ = 36445368960.

The previous prime is 87913932781. The next prime is 87913932833. The reversal of 87913932806 is 60823931978.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4381076 + ... + 4401096.

It is an arithmetic number, because the mean of its divisors is an integer number (2482227450).

Almost surely, 2^87913932806 is an apocalyptic number.

87913932806 is a deficient number, since it is larger than the sum of its proper divisors (70948623994).

87913932806 is a wasteful number, since it uses less digits than its factorization.

87913932806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20254 (or 20240 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 87913932806 in words is "eighty-seven billion, nine hundred thirteen million, nine hundred thirty-two thousand, eight hundred six".