86991302502 has 48 divisors (see below), whose sum is σ = 203001074640. Its totient is φ = 26763736896.

The previous prime is 86991302479. The next prime is 86991302513. The reversal of 86991302502 is 20520319968.

86991302502 is a `hidden beast` number, since 8 + 6 + 9 + 9 + 130 + 2 + 502 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3786133 + ... + 3809039.

It is an arithmetic number, because the mean of its divisors is an integer number (4229189055).

Almost surely, 2^86991302502 is an apocalyptic number.

86991302502 is an abundant number, since it is smaller than the sum of its proper divisors (116009772138).

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

86991302502 is a wasteful number, since it uses less digits than its factorization.

86991302502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39157 (or 39154 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 86991302502 in words is "eighty-six billion, nine hundred ninety-one million, three hundred two thousand, five hundred two".