86556686973612 has 48 divisors (see below), whose sum is σ = 210749075147520. Its totient is φ = 27597475331008.

The previous prime is 86556686973599. The next prime is 86556686973619. The reversal of 86556686973612 is 21637968665568.

It is not an unprimeable number, because it can be changed into a prime (86556686973619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23608939 + ... + 27027677.

It is an arithmetic number, because the mean of its divisors is an integer number (4390605732240).

Almost surely, 2^{86556686973612} is an apocalyptic number.

It is an amenable number.

86556686973612 is an abundant number, since it is smaller than the sum of its proper divisors (124192388173908).

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

86556686973612 is a wasteful number, since it uses less digits than its factorization.

86556686973612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510502 (or 3510500 counting only the distinct ones).

The product of its digits is 4702924800, while the sum is 78.

The spelling of 86556686973612 in words is "eighty-six trillion, five hundred fifty-six billion, six hundred eighty-six million, nine hundred seventy-three thousand, six hundred twelve".