37912901640 has 32 divisors (see below), whose sum is σ = 113738705280. Its totient is φ = 10110107072.

The previous prime is 37912901617. The next prime is 37912901671. The reversal of 37912901640 is 4610921973.

It is a super-2 number, since 2×37912901640² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37912901592 and 37912901601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157970304 + ... + 157970543.

It is an arithmetic number, because the mean of its divisors is an integer number (3554334540).

Almost surely, 2^37912901640 is an apocalyptic number.

37912901640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

37912901640 is an abundant number, since it is smaller than the sum of its proper divisors (75825803640).

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

37912901640 is a wasteful number, since it uses less digits than its factorization.

37912901640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315940861 (or 315940857 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 37912901640 in words is "thirty-seven billion, nine hundred twelve million, nine hundred one thousand, six hundred forty".