37664929009 has 2 divisors, whose sum is σ = 37664929010. Its totient is φ = 37664929008.

The previous prime is 37664928997. The next prime is 37664929013. The reversal of 37664929009 is 90092946673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28391239009 + 9273690000 = 168497^2 + 96300^2 .

It is a cyclic number.

It is not a de Polignac number, because 37664929009 - 2⁷ = 37664928881 is a prime.

It is not a weakly prime, because it can be changed into another prime (37664929079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18832464504 + 18832464505.

It is an arithmetic number, because the mean of its divisors is an integer number (18832464505).

Almost surely, 2^37664929009 is an apocalyptic number.

It is an amenable number.

37664929009 is a deficient number, since it is larger than the sum of its proper divisors (1).

37664929009 is an equidigital number, since it uses as much as digits as its factorization.

37664929009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 37664929009 in words is "thirty-seven billion, six hundred sixty-four million, nine hundred twenty-nine thousand, nine".