86506243924 has 12 divisors (see below), whose sum is σ = 151414035444. Its totient is φ = 43245090944.

The previous prime is 86506243919. The next prime is 86506243961. The reversal of 86506243924 is 42934260568.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59604339600 + 26901904324 = 244140^2 + 164018^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983487 + ... + 2026630.

It is an arithmetic number, because the mean of its divisors is an integer number (12617836287).

Almost surely, 2^86506243924 is an apocalyptic number.

It is an amenable number.

86506243924 is a deficient number, since it is larger than the sum of its proper divisors (64907791520).

86506243924 is a wasteful number, since it uses less digits than its factorization.

86506243924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015514 (or 4015512 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 86506243924 in words is "eighty-six billion, five hundred six million, two hundred forty-three thousand, nine hundred twenty-four".