37595945021 has 2 divisors, whose sum is σ = 37595945022. Its totient is φ = 37595945020.

The previous prime is 37595945017. The next prime is 37595945039. The reversal of 37595945021 is 12054959573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36610612921 + 985332100 = 191339^2 + 31390^2 .

It is a cyclic number.

It is not a de Polignac number, because 37595945021 - 2² = 37595945017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37595944021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18797972510 + 18797972511.

It is an arithmetic number, because the mean of its divisors is an integer number (18797972511).

Almost surely, 2^37595945021 is an apocalyptic number.

It is an amenable number.

37595945021 is a deficient number, since it is larger than the sum of its proper divisors (1).

37595945021 is an equidigital number, since it uses as much as digits as its factorization.

37595945021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 37595945021 in words is "thirty-seven billion, five hundred ninety-five million, nine hundred forty-five thousand, twenty-one".