86256246931 has 2 divisors, whose sum is σ = 86256246932. Its totient is φ = 86256246930.

The previous prime is 86256246919. The next prime is 86256246971. The reversal of 86256246931 is 13964265268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86256246931 - 2¹¹ = 86256244883 is a prime.

It is a super-2 number, since 2×86256246931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86256246971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43128123465 + 43128123466.

It is an arithmetic number, because the mean of its divisors is an integer number (43128123466).

Almost surely, 2^86256246931 is an apocalyptic number.

86256246931 is a deficient number, since it is larger than the sum of its proper divisors (1).

86256246931 is an equidigital number, since it uses as much as digits as its factorization.

86256246931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 52.

The spelling of 86256246931 in words is "eighty-six billion, two hundred fifty-six million, two hundred forty-six thousand, nine hundred thirty-one".