37957368949 has 2 divisors, whose sum is σ = 37957368950. Its totient is φ = 37957368948.

The previous prime is 37957368941. The next prime is 37957369031. The reversal of 37957368949 is 94986375973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35642796849 + 2314572100 = 188793^2 + 48110^2 .

It is a cyclic number.

It is not a de Polignac number, because 37957368949 - 2³ = 37957368941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37957368941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18978684474 + 18978684475.

It is an arithmetic number, because the mean of its divisors is an integer number (18978684475).

Almost surely, 2^37957368949 is an apocalyptic number.

It is an amenable number.

37957368949 is a deficient number, since it is larger than the sum of its proper divisors (1).

37957368949 is an equidigital number, since it uses as much as digits as its factorization.

37957368949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308629440, while the sum is 70.

The spelling of 37957368949 in words is "thirty-seven billion, nine hundred fifty-seven million, three hundred sixty-eight thousand, nine hundred forty-nine".