37664075245 has 4 divisors (see below), whose sum is σ = 45196890300. Its totient is φ = 30131260192.

The previous prime is 37664075213. The next prime is 37664075279. The reversal of 37664075245 is 54257046673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12882704004 + 24781371241 = 113502^2 + 157421^2 .

It is a cyclic number.

It is not a de Polignac number, because 37664075245 - 2⁵ = 37664075213 is a prime.

It is a super-2 number, since 2×37664075245² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3766407520 + ... + 3766407529.

It is an arithmetic number, because the mean of its divisors is an integer number (11299222575).

Almost surely, 2^37664075245 is an apocalyptic number.

It is an amenable number.

37664075245 is a deficient number, since it is larger than the sum of its proper divisors (7532815055).

37664075245 is an equidigital number, since it uses as much as digits as its factorization.

37664075245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7532815054.

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 37664075245 in words is "thirty-seven billion, six hundred sixty-four million, seventy-five thousand, two hundred forty-five".