86712937128 has 80 divisors (see below), whose sum is σ = 245234726880. Its totient is φ = 28623665952.

The previous prime is 86712937121. The next prime is 86712937147. The reversal of 86712937128 is 82173921768.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (86712937121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 582850 + ... + 716337.

It is an arithmetic number, because the mean of its divisors is an integer number (3065434086).

Almost surely, 2^86712937128 is an apocalyptic number.

It is an amenable number.

86712937128 is an abundant number, since it is smaller than the sum of its proper divisors (158521789752).

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

86712937128 is a wasteful number, since it uses less digits than its factorization.

86712937128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299308 (or 1299295 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The spelling of 86712937128 in words is "eighty-six billion, seven hundred twelve million, nine hundred thirty-seven thousand, one hundred twenty-eight".