39400161597 has 24 divisors (see below), whose sum is σ = 57214976000. Its totient is φ = 26126839008.

The previous prime is 39400161589. The next prime is 39400161599. The reversal of 39400161597 is 79516100493.

39400161597 is a `hidden beast` number, since 3 + 9 + 40 + 0 + 16 + 1 + 597 = 666.

39400161597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39400161597 - 2³ = 39400161589 is a prime.

It is a super-4 number, since 4×39400161597⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39400161599) 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, 2559279 + ... + 2574627.

Almost surely, 2^39400161597 is an apocalyptic number.

It is an amenable number.

39400161597 is a deficient number, since it is larger than the sum of its proper divisors (17814814403).

39400161597 is a wasteful number, since it uses less digits than its factorization.

39400161597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857 (or 16854 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 39400161597 in words is "thirty-nine billion, four hundred million, one hundred sixty-one thousand, five hundred ninety-seven".