864036625923 has 6 divisors (see below), whose sum is σ = 1248052904124. Its totient is φ = 576024417276.

The previous prime is 864036625897. The next prime is 864036625961. The reversal of 864036625923 is 329526630468.

It is a happy number.

864036625923 is a `hidden beast` number, since 8 + 6 + 4 + 0 + 3 + 6 + 625 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 864036625923 - 2⁹ = 864036625411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 864036625923.

It is not an unprimeable number, because it can be changed into a prime (864036605923) 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 5 ways as a sum of consecutive naturals, for example, 48002034765 + ... + 48002034782.

It is an arithmetic number, because the mean of its divisors is an integer number (208008817354).

Almost surely, 2^864036625923 is an apocalyptic number.

864036625923 is a deficient number, since it is larger than the sum of its proper divisors (384016278201).

864036625923 is a wasteful number, since it uses less digits than its factorization.

864036625923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96004069553 (or 96004069550 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 864036625923 in words is "eight hundred sixty-four billion, thirty-six million, six hundred twenty-five thousand, nine hundred twenty-three".