37893640917 has 48 divisors (see below), whose sum is σ = 60442828992. Its totient is φ = 20869309440.

The previous prime is 37893640877. The next prime is 37893640919. The reversal of 37893640917 is 71904639873.

It is not a de Polignac number, because 37893640917 - 2⁷ = 37893640789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37893640919) 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, 431643 + ... + 511959.

It is an arithmetic number, because the mean of its divisors is an integer number (1259225604).

Almost surely, 2^37893640917 is an apocalyptic number.

It is an amenable number.

37893640917 is a deficient number, since it is larger than the sum of its proper divisors (22549188075).

37893640917 is a wasteful number, since it uses less digits than its factorization.

37893640917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80406 (or 80377 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 37893640917 in words is "thirty-seven billion, eight hundred ninety-three million, six hundred forty thousand, nine hundred seventeen".