86556840023 has 2 divisors, whose sum is σ = 86556840024. Its totient is φ = 86556840022.

The previous prime is 86556839989. The next prime is 86556840091. The reversal of 86556840023 is 32004865568.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86556840023 - 2⁸ = 86556839767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86556840023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86556840323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43278420011 + 43278420012.

It is an arithmetic number, because the mean of its divisors is an integer number (43278420012).

Almost surely, 2^86556840023 is an apocalyptic number.

86556840023 is a deficient number, since it is larger than the sum of its proper divisors (1).

86556840023 is an equidigital number, since it uses as much as digits as its factorization.

86556840023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 86556840023 in words is "eighty-six billion, five hundred fifty-six million, eight hundred forty thousand, twenty-three".