86028307992 has 72 divisors (see below), whose sum is σ = 256100137020. Its totient is φ = 26069181600.

The previous prime is 86028307969. The next prime is 86028307997. The reversal of 86028307992 is 29970382068.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×86028307992² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86028307997) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4928634 + ... + 4946057.

Almost surely, 2^86028307992 is an apocalyptic number.

It is an amenable number.

86028307992 is an abundant number, since it is smaller than the sum of its proper divisors (170071829028).

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

86028307992 is a wasteful number, since it uses less digits than its factorization.

86028307992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9874725 (or 9874707 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 86028307992 in words is "eighty-six billion, twenty-eight million, three hundred seven thousand, nine hundred ninety-two".