39924585368 has 8 divisors (see below), whose sum is σ = 74858597580. Its totient is φ = 19962292680.

The previous prime is 39924585359. The next prime is 39924585409. The reversal of 39924585368 is 86358542993.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 39924585368.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2495286578 + ... + 2495286593.

Almost surely, 2^39924585368 is an apocalyptic number.

It is an amenable number.

39924585368 is a deficient number, since it is larger than the sum of its proper divisors (34934012212).

39924585368 is a wasteful number, since it uses less digits than its factorization.

39924585368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990573177 (or 4990573173 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 62.

The spelling of 39924585368 in words is "thirty-nine billion, nine hundred twenty-four million, five hundred eighty-five thousand, three hundred sixty-eight".