86862513931 has 4 divisors (see below), whose sum is σ = 91972073592. Its totient is φ = 81752954272.

The previous prime is 86862513917. The next prime is 86862513953. The reversal of 86862513931 is 13931526868.

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 86862513931 - 2¹⁵ = 86862481163 is a prime.

It is a super-2 number, since 2×86862513931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86862513911) 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 3 ways as a sum of consecutive naturals, for example, 2554779805 + ... + 2554779838.

It is an arithmetic number, because the mean of its divisors is an integer number (22993018398).

Almost surely, 2^86862513931 is an apocalyptic number.

86862513931 is a deficient number, since it is larger than the sum of its proper divisors (5109559661).

86862513931 is a wasteful number, since it uses less digits than its factorization.

86862513931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5109559660.

The product of its digits is 1866240, while the sum is 52.

The spelling of 86862513931 in words is "eighty-six billion, eight hundred sixty-two million, five hundred thirteen thousand, nine hundred thirty-one".