86671573525 has 12 divisors (see below), whose sum is σ = 109076824192. Its totient is φ = 68302373040.

The previous prime is 86671573519. The next prime is 86671573567. The reversal of 86671573525 is 52537517668.

It is not a de Polignac number, because 86671573525 - 2⁵ = 86671573493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25870437 + ... + 25873786.

Almost surely, 2^86671573525 is an apocalyptic number.

It is an amenable number.

86671573525 is a deficient number, since it is larger than the sum of its proper divisors (22405250667).

86671573525 is a wasteful number, since it uses less digits than its factorization.

86671573525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51744300 (or 51744295 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 55.

The spelling of 86671573525 in words is "eighty-six billion, six hundred seventy-one million, five hundred seventy-three thousand, five hundred twenty-five".