37999618620 has 24 divisors (see below), whose sum is σ = 106398932304. Its totient is φ = 10133231616.

The previous prime is 37999618607. The next prime is 37999618621. The reversal of 37999618620 is 2681699973.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 633326977 = 37999618620 / (3 + 7 + 9 + 9 + 9 + 6 + 1 + 8 + 6 + 2 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37999618621) by changing a digit.

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, 316663429 + ... + 316663548.

It is an arithmetic number, because the mean of its divisors is an integer number (4433288846).

Almost surely, 2^37999618620 is an apocalyptic number.

37999618620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37999618620 is an abundant number, since it is smaller than the sum of its proper divisors (68399313684).

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

37999618620 is a wasteful number, since it uses less digits than its factorization.

37999618620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633326989 (or 633326987 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 37999618620 in words is "thirty-seven billion, nine hundred ninety-nine million, six hundred eighteen thousand, six hundred twenty".