864745966792 has 32 divisors (see below), whose sum is σ = 1665558228600. Its totient is φ = 420601849344.

The previous prime is 864745966757. The next prime is 864745966823. The reversal of 864745966792 is 297669547468.

It can be written as a sum of positive squares in 4 ways, for example, as 857427848676 + 7318118116 = 925974^2 + 85546^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1176858 + ... + 1764790.

Almost surely, 2^864745966792 is an apocalyptic number.

It is an amenable number.

864745966792 is a deficient number, since it is larger than the sum of its proper divisors (800812261808).

864745966792 is a wasteful number, since it uses less digits than its factorization.

864745966792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592945 (or 592941 counting only the distinct ones).

The product of its digits is 1097349120, while the sum is 73.

The spelling of 864745966792 in words is "eight hundred sixty-four billion, seven hundred forty-five million, nine hundred sixty-six thousand, seven hundred ninety-two".