86128367478888 has 32 divisors (see below), whose sum is σ = 246081049940160. Its totient is φ = 24608104993920.

The previous prime is 86128367478871. The next prime is 86128367478917. The reversal of 86128367478888 is 88887476382168.

It is a super-2 number, since 2×86128367478888² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 86128367478888.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256334426853 + ... + 256334427188.

It is an arithmetic number, because the mean of its divisors is an integer number (7690032810630).

Almost surely, 2^{86128367478888} is an apocalyptic number.

It is an amenable number.

86128367478888 is an abundant number, since it is smaller than the sum of its proper divisors (159952682461272).

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

86128367478888 is a wasteful number, since it uses less digits than its factorization.

86128367478888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512668854057 (or 512668854053 counting only the distinct ones).

The product of its digits is 11098128384, while the sum is 84.

The spelling of 86128367478888 in words is "eighty-six trillion, one hundred twenty-eight billion, three hundred sixty-seven million, four hundred seventy-eight thousand, eight hundred eighty-eight".