86128270722 has 162 divisors, whose sum is σ = 215343851697. Its totient is φ = 24862436352.

The previous prime is 86128270681. The next prime is 86128270769. The reversal of 86128270722 is 22707282168.

86128270722 is a `hidden beast` number, since 8 + 612 + 8 + 2 + 7 + 0 + 7 + 22 = 666.

It can be written as a sum of positive squares in 14 ways, for example, as 44373843801 + 41754426921 = 210651^2 + 204339^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=207519.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 275170038 + ... + 275170350.

Almost surely, 2^86128270722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86128270722

86128270722 is an abundant number, since it is smaller than the sum of its proper divisors (129215580975).

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

86128270722 is a wasteful number, since it uses less digits than its factorization.

86128270722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 86128270722 in words is "eighty-six billion, one hundred twenty-eight million, two hundred seventy thousand, seven hundred twenty-two".