37664929013 has 2 divisors, whose sum is σ = 37664929014. Its totient is φ = 37664929012.

The previous prime is 37664929009. The next prime is 37664929079. The reversal of 37664929013 is 31092946673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21392865169 + 16272063844 = 146263^2 + 127562^2 .

It is a cyclic number.

It is not a de Polignac number, because 37664929013 - 2² = 37664929009 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 (37664922013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18832464506 + 18832464507.

It is an arithmetic number, because the mean of its divisors is an integer number (18832464507).

Almost surely, 2^37664929013 is an apocalyptic number.

It is an amenable number.

37664929013 is a deficient number, since it is larger than the sum of its proper divisors (1).

37664929013 is an equidigital number, since it uses as much as digits as its factorization.

37664929013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 37664929013 in words is "thirty-seven billion, six hundred sixty-four million, nine hundred twenty-nine thousand, thirteen".