37981749952 has 14 divisors (see below), whose sum is σ = 75370035188. Its totient is φ = 18990874944.

The previous prime is 37981749947. The next prime is 37981749961. The reversal of 37981749952 is 25994718973.

It is a super-2 number, since 2×37981749952² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 593464843 = 37981749952 / (3 + 7 + 9 + 8 + 1 + 7 + 4 + 9 + 9 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 296732358 + ... + 296732485.

It is an arithmetic number, because the mean of its divisors is an integer number (5383573942).

Almost surely, 2^37981749952 is an apocalyptic number.

37981749952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

37981749952 is a deficient number, since it is larger than the sum of its proper divisors (37388285236).

37981749952 is an equidigital number, since it uses as much as digits as its factorization.

37981749952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593464855 (or 593464845 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 64.

The spelling of 37981749952 in words is "thirty-seven billion, nine hundred eighty-one million, seven hundred forty-nine thousand, nine hundred fifty-two".