86909361980 has 24 divisors (see below), whose sum is σ = 208582469088. Its totient is φ = 29797495488.

The previous prime is 86909361971. The next prime is 86909361997. The reversal of 86909361980 is 8916390968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310390439 + ... + 310390718.

It is an arithmetic number, because the mean of its divisors is an integer number (8690936212).

Almost surely, 2^86909361980 is an apocalyptic number.

It is an amenable number.

86909361980 is an abundant number, since it is smaller than the sum of its proper divisors (121673107108).

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

86909361980 is a wasteful number, since it uses less digits than its factorization.

86909361980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620781173 (or 620781171 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 86909361980 in words is "eighty-six billion, nine hundred nine million, three hundred sixty-one thousand, nine hundred eighty".