30873733938 has 12 divisors (see below), whose sum is σ = 66893090238. Its totient is φ = 10291244640.

The previous prime is 30873733937. The next prime is 30873733963. The reversal of 30873733938 is 83933737803.

It can be written as a sum of positive squares in only one way, i.e., 29952186489 + 921547449 = 173067^2 + 30357^2 .

It is not an unprimeable number, because it can be changed into a prime (30873733937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857603703 + ... + 857603738.

Almost surely, 2^30873733938 is an apocalyptic number.

30873733938 is an abundant number, since it is smaller than the sum of its proper divisors (36019356300).

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

30873733938 is a wasteful number, since it uses less digits than its factorization.

30873733938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715207449 (or 1715207446 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 54.

The spelling of 30873733938 in words is "thirty billion, eight hundred seventy-three million, seven hundred thirty-three thousand, nine hundred thirty-eight".