37993970817 has 24 divisors (see below), whose sum is σ = 59896399680. Its totient is φ = 23016221280.

The previous prime is 37993970801. The next prime is 37993970827. The reversal of 37993970817 is 71807939973.

37993970817 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 37993970817 - 2⁴ = 37993970801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37993970827) 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, 135684 + ... + 307242.

It is an arithmetic number, because the mean of its divisors is an integer number (2495683320).

Almost surely, 2^37993970817 is an apocalyptic number.

It is an amenable number.

37993970817 is a deficient number, since it is larger than the sum of its proper divisors (21902428863).

37993970817 is a wasteful number, since it uses less digits than its factorization.

37993970817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173813 (or 173810 counting only the distinct ones).

The product of its (nonzero) digits is 18003384, while the sum is 63.

The spelling of 37993970817 in words is "thirty-seven billion, nine hundred ninety-three million, nine hundred seventy thousand, eight hundred seventeen".