39157890039 has 24 divisors (see below), whose sum is σ = 59726213040. Its totient is φ = 24653248128.

The previous prime is 39157890017. The next prime is 39157890041. The reversal of 39157890039 is 93009875193.

39157890039 is a `hidden beast` number, since 39 + 1 + 578 + 9 + 0 + 0 + 39 = 666.

It is not a de Polignac number, because 39157890039 - 2⁸ = 39157889783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39157890089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306982 + ... + 415395.

It is an arithmetic number, because the mean of its divisors is an integer number (2488592210).

Almost surely, 2^39157890039 is an apocalyptic number.

39157890039 is a deficient number, since it is larger than the sum of its proper divisors (20568323001).

39157890039 is a wasteful number, since it uses less digits than its factorization.

39157890039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722719 (or 722716 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 39157890039 in words is "thirty-nine billion, one hundred fifty-seven million, eight hundred ninety thousand, thirty-nine".