37945606913 has 2 divisors, whose sum is σ = 37945606914. Its totient is φ = 37945606912.

The previous prime is 37945606883. The next prime is 37945606961. The reversal of 37945606913 is 31960654973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33927061249 + 4018545664 = 184193^2 + 63392^2 .

It is a cyclic number.

It is not a de Polignac number, because 37945606913 - 2¹² = 37945602817 is a prime.

It is not a weakly prime, because it can be changed into another prime (37945606213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18972803456 + 18972803457.

It is an arithmetic number, because the mean of its divisors is an integer number (18972803457).

Almost surely, 2^37945606913 is an apocalyptic number.

It is an amenable number.

37945606913 is a deficient number, since it is larger than the sum of its proper divisors (1).

37945606913 is an equidigital number, since it uses as much as digits as its factorization.

37945606913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 53.

The spelling of 37945606913 in words is "thirty-seven billion, nine hundred forty-five million, six hundred six thousand, nine hundred thirteen".