30481151988 has 24 divisors (see below), whose sum is σ = 81283072192. Its totient is φ = 8708900544.

The previous prime is 30481151959. The next prime is 30481152001. The reversal of 30481151988 is 88915118403.

It is a happy number.

It is a congruent number.

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, 181435345 + ... + 181435512.

Almost surely, 2^30481151988 is an apocalyptic number.

It is an amenable number.

30481151988 is an abundant number, since it is smaller than the sum of its proper divisors (50801920204).

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

30481151988 is a wasteful number, since it uses less digits than its factorization.

30481151988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362870871 (or 362870869 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 48.

The spelling of 30481151988 in words is "thirty billion, four hundred eighty-one million, one hundred fifty-one thousand, nine hundred eighty-eight".