37138231840 has 24 divisors (see below), whose sum is σ = 87739073100. Its totient is φ = 14855292672.

The previous prime is 37138231829. The next prime is 37138231901. The reversal of 37138231840 is 4813283173.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32771136784 + 4367095056 = 181028^2 + 66084^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 37138231793 and 37138231802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116056815 + ... + 116057134.

Almost surely, 2^37138231840 is an apocalyptic number.

It is an amenable number.

37138231840 is an abundant number, since it is smaller than the sum of its proper divisors (50600841260).

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

37138231840 is a wasteful number, since it uses less digits than its factorization.

37138231840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232113964 (or 232113956 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 37138231840 in words is "thirty-seven billion, one hundred thirty-eight million, two hundred thirty-one thousand, eight hundred forty".