37971898613 has 16 divisors (see below), whose sum is σ = 41806331712. Its totient is φ = 34201440000.

The previous prime is 37971898603. The next prime is 37971898631. The reversal of 37971898613 is 31689817973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37971898613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37971898603) 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, 5031623 + ... + 5039163.

It is an arithmetic number, because the mean of its divisors is an integer number (2612895732).

Almost surely, 2^37971898613 is an apocalyptic number.

It is an amenable number.

37971898613 is a deficient number, since it is larger than the sum of its proper divisors (3834433099).

37971898613 is a wasteful number, since it uses less digits than its factorization.

37971898613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11716.

The product of its digits is 13716864, while the sum is 62.

The spelling of 37971898613 in words is "thirty-seven billion, nine hundred seventy-one million, eight hundred ninety-eight thousand, six hundred thirteen".