37640682715 has 4 divisors (see below), whose sum is σ = 45168819264. Its totient is φ = 30112546168.

The previous prime is 37640682689. The next prime is 37640682757. The reversal of 37640682715 is 51728604673.

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

It is a cyclic number.

It is not a de Polignac number, because 37640682715 - 2⁷ = 37640682587 is a prime.

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 Duffinian 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, 3764068267 + ... + 3764068276.

It is an arithmetic number, because the mean of its divisors is an integer number (11292204816).

Almost surely, 2^37640682715 is an apocalyptic number.

37640682715 is a deficient number, since it is larger than the sum of its proper divisors (7528136549).

37640682715 is an equidigital number, since it uses as much as digits as its factorization.

37640682715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528136548.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 37640682715 in words is "thirty-seven billion, six hundred forty million, six hundred eighty-two thousand, seven hundred fifteen".