30868133520 has 160 divisors (see below), whose sum is σ = 115794517248. Its totient is φ = 6640533504.

The previous prime is 30868133519. The next prime is 30868133599. The reversal of 30868133520 is 2533186803.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511849 + ... + 568968.

Almost surely, 2^30868133520 is an apocalyptic number.

30868133520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30868133520 is an abundant number, since it is smaller than the sum of its proper divisors (84926383728).

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

30868133520 is a wasteful number, since it uses less digits than its factorization.

30868133520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080857 (or 1080851 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 30868133520 in words is "thirty billion, eight hundred sixty-eight million, one hundred thirty-three thousand, five hundred twenty".