39938977239 has 16 divisors (see below), whose sum is σ = 60893057280. Its totient is φ = 22809648960.

The previous prime is 39938977213. The next prime is 39938977249. The reversal of 39938977239 is 93277983993.

It is not a de Polignac number, because 39938977239 - 2⁵ = 39938977207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39938977249) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 487054 + ... + 563115.

It is an arithmetic number, because the mean of its divisors is an integer number (3805816080).

Almost surely, 2^39938977239 is an apocalyptic number.

39938977239 is a deficient number, since it is larger than the sum of its proper divisors (20954080041).

39938977239 is a wasteful number, since it uses less digits than its factorization.

39938977239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051990.

The product of its digits is 138883248, while the sum is 69.

The spelling of 39938977239 in words is "thirty-nine billion, nine hundred thirty-eight million, nine hundred seventy-seven thousand, two hundred thirty-nine".