37979868645 has 48 divisors (see below), whose sum is σ = 69390048000. Its totient is φ = 19163952000.

The previous prime is 37979868631. The next prime is 37979868677. The reversal of 37979868645 is 54686897973.

It is not a de Polignac number, because 37979868645 - 2⁵ = 37979868613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 612531 + ... + 671679.

It is an arithmetic number, because the mean of its divisors is an integer number (1445626000).

Almost surely, 2^37979868645 is an apocalyptic number.

It is an amenable number.

37979868645 is a deficient number, since it is larger than the sum of its proper divisors (31410179355).

37979868645 is a wasteful number, since it uses less digits than its factorization.

37979868645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59930 (or 59927 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 72.

The spelling of 37979868645 in words is "thirty-seven billion, nine hundred seventy-nine million, eight hundred sixty-eight thousand, six hundred forty-five".