37994996736 has 264 divisors, whose sum is σ = 119925771264. Its totient is φ = 11534008320.

The previous prime is 37994996723. The next prime is 37994996747. The reversal of 37994996736 is 63769949973.

37994996736 is a `hidden beast` number, since 3 + 79 + 9 + 499 + 67 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4852921 + ... + 4860743.

Almost surely, 2^37994996736 is an apocalyptic number.

37994996736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 37994996736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59962885632).

37994996736 is an abundant number, since it is smaller than the sum of its proper divisors (81930774528).

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

37994996736 is a wasteful number, since it uses less digits than its factorization.

37994996736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897 (or 7876 counting only the distinct ones).

The product of its digits is 416649744, while the sum is 72.

The spelling of 37994996736 in words is "thirty-seven billion, nine hundred ninety-four million, nine hundred ninety-six thousand, seven hundred thirty-six".