30631681932 has 24 divisors (see below), whose sum is σ = 73779535872. Its totient is φ = 9881187600.

The previous prime is 30631681919. The next prime is 30631681937. The reversal of 30631681932 is 23918613603.

It is not an unprimeable number, because it can be changed into a prime (30631681937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41171244 + ... + 41171987.

It is an arithmetic number, because the mean of its divisors is an integer number (3074147328).

Almost surely, 2^30631681932 is an apocalyptic number.

It is an amenable number.

30631681932 is an abundant number, since it is smaller than the sum of its proper divisors (43147853940).

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

30631681932 is a wasteful number, since it uses less digits than its factorization.

30631681932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82343269 (or 82343267 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 30631681932 in words is "thirty billion, six hundred thirty-one million, six hundred eighty-one thousand, nine hundred thirty-two".