37640970989 has 2 divisors, whose sum is σ = 37640970990. Its totient is φ = 37640970988.

The previous prime is 37640970967. The next prime is 37640971009. The reversal of 37640970989 is 98907904673.

37640970989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33294206089 + 4346764900 = 182467^2 + 65930^2 .

It is a cyclic number.

It is not a de Polignac number, because 37640970989 - 2²⁸ = 37372535533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37640970089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18820485494 + 18820485495.

It is an arithmetic number, because the mean of its divisors is an integer number (18820485495).

Almost surely, 2^37640970989 is an apocalyptic number.

It is an amenable number.

37640970989 is a deficient number, since it is larger than the sum of its proper divisors (1).

37640970989 is an equidigital number, since it uses as much as digits as its factorization.

37640970989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 37640970989 in words is "thirty-seven billion, six hundred forty million, nine hundred seventy thousand, nine hundred eighty-nine".