86576065931 has 4 divisors (see below), whose sum is σ = 91132701000. Its totient is φ = 82019430864.

The previous prime is 86576065913. The next prime is 86576065943. The reversal of 86576065931 is 13956067568.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86576065931 - 2²² = 86571871627 is a prime.

It is a super-2 number, since 2×86576065931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86576085931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2278317506 + ... + 2278317543.

It is an arithmetic number, because the mean of its divisors is an integer number (22783175250).

Almost surely, 2^86576065931 is an apocalyptic number.

86576065931 is a deficient number, since it is larger than the sum of its proper divisors (4556635069).

86576065931 is a wasteful number, since it uses less digits than its factorization.

86576065931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556635068.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 86576065931 in words is "eighty-six billion, five hundred seventy-six million, sixty-five thousand, nine hundred thirty-one".