864806577983 has 2 divisors, whose sum is σ = 864806577984. Its totient is φ = 864806577982.

The previous prime is 864806577889. The next prime is 864806578003. The reversal of 864806577983 is 389775608468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864806577983 - 2²⁸ = 864538142527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864806577683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432403288991 + 432403288992.

It is an arithmetic number, because the mean of its divisors is an integer number (432403288992).

Almost surely, 2^864806577983 is an apocalyptic number.

864806577983 is a deficient number, since it is larger than the sum of its proper divisors (1).

864806577983 is an equidigital number, since it uses as much as digits as its factorization.

864806577983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 487710720, while the sum is 71.

The spelling of 864806577983 in words is "eight hundred sixty-four billion, eight hundred six million, five hundred seventy-seven thousand, nine hundred eighty-three".