39959646597 has 48 divisors (see below), whose sum is σ = 66890862720. Its totient is φ = 23521335552.

The previous prime is 39959646589. The next prime is 39959646611. The reversal of 39959646597 is 79564695993.

39959646597 is a `hidden beast` number, since 399 + 5 + 96 + 4 + 65 + 97 = 666.

39959646597 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 39959646597 - 2³ = 39959646589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39959646527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85428 + ... + 295325.

It is an arithmetic number, because the mean of its divisors is an integer number (1393559640).

Almost surely, 2^39959646597 is an apocalyptic number.

It is an amenable number.

39959646597 is a deficient number, since it is larger than the sum of its proper divisors (26931216123).

39959646597 is a wasteful number, since it uses less digits than its factorization.

39959646597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380811 (or 380792 counting only the distinct ones).

The product of its digits is 496011600, while the sum is 72.

The spelling of 39959646597 in words is "thirty-nine billion, nine hundred fifty-nine million, six hundred forty-six thousand, five hundred ninety-seven".