37894940538 has 32 divisors (see below), whose sum is σ = 93279854976. Its totient is φ = 9994269888.

The previous prime is 37894940537. The next prime is 37894940543. The reversal of 37894940538 is 83504949873.

It is not an unprimeable number, because it can be changed into a prime (37894940537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34701781 + ... + 34702872.

It is an arithmetic number, because the mean of its divisors is an integer number (2914995468).

Almost surely, 2^37894940538 is an apocalyptic number.

37894940538 is an abundant number, since it is smaller than the sum of its proper divisors (55384914438).

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

37894940538 is a wasteful number, since it uses less digits than its factorization.

37894940538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69404678.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 37894940538 in words is "thirty-seven billion, eight hundred ninety-four million, nine hundred forty thousand, five hundred thirty-eight".