39938977948 has 12 divisors (see below), whose sum is σ = 74004576912. Its totient is φ = 18794813120.

The previous prime is 39938977921. The next prime is 39938978011. The reversal of 39938977948 is 84977983993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293668888 + ... + 293669023.

It is an arithmetic number, because the mean of its divisors is an integer number (6167048076).

Almost surely, 2^39938977948 is an apocalyptic number.

It is an amenable number.

39938977948 is a deficient number, since it is larger than the sum of its proper divisors (34065598964).

39938977948 is a wasteful number, since it uses less digits than its factorization.

39938977948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587337932 (or 587337930 counting only the distinct ones).

The product of its digits is 740710656, while the sum is 76.

The spelling of 39938977948 in words is "thirty-nine billion, nine hundred thirty-eight million, nine hundred seventy-seven thousand, nine hundred forty-eight".