38640644604676 has 24 divisors (see below), whose sum is σ = 67687311094200. Its totient is φ = 19301413804032.

The previous prime is 38640644604659. The next prime is 38640644604707. The reversal of 38640644604676 is 67640644604683.

It can be written as a sum of positive squares in 4 ways, for example, as 16528078844676 + 22112565760000 = 4065474^2 + 4702400^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209846440 + ... + 210030496.

It is an arithmetic number, because the mean of its divisors is an integer number (2820304628925).

Almost surely, 2^{38640644604676} is an apocalyptic number.

It is an amenable number.

38640644604676 is a deficient number, since it is larger than the sum of its proper divisors (29046666489524).

38640644604676 is a wasteful number, since it uses less digits than its factorization.

38640644604676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235143 (or 235141 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 64.

The spelling of 38640644604676 in words is "thirty-eight trillion, six hundred forty billion, six hundred forty-four million, six hundred four thousand, six hundred seventy-six".