37990493165 has 4 divisors (see below), whose sum is σ = 45588591804. Its totient is φ = 30392394528.

The previous prime is 37990493137. The next prime is 37990493209. The reversal of 37990493165 is 56139409973.

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 16750054084 + 21240439081 = 129422^2 + 145741^2 .

It is a cyclic number.

It is not a de Polignac number, because 37990493165 - 2³⁰ = 36916751341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37990493165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3799049312 + ... + 3799049321.

It is an arithmetic number, because the mean of its divisors is an integer number (11397147951).

Almost surely, 2^37990493165 is an apocalyptic number.

It is an amenable number.

37990493165 is a deficient number, since it is larger than the sum of its proper divisors (7598098639).

37990493165 is an equidigital number, since it uses as much as digits as its factorization.

37990493165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7598098638.

The product of its (nonzero) digits is 5511240, while the sum is 56.

The spelling of 37990493165 in words is "thirty-seven billion, nine hundred ninety million, four hundred ninety-three thousand, one hundred sixty-five".