37813315640 has 32 divisors (see below), whose sum is σ = 85122448560. Its totient is φ = 15117772800.

The previous prime is 37813315627. The next prime is 37813315693. The reversal of 37813315640 is 4651331873.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154601 + ... + 315480.

Almost surely, 2^37813315640 is an apocalyptic number.

It is an amenable number.

37813315640 is an abundant number, since it is smaller than the sum of its proper divisors (47309132920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

37813315640 is a wasteful number, since it uses less digits than its factorization.

37813315640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472103 (or 472099 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 37813315640 in words is "thirty-seven billion, eight hundred thirteen million, three hundred fifteen thousand, six hundred forty".