30018808128 has 56 divisors (see below), whose sum is σ = 79562708032. Its totient is φ = 9988890624.

The previous prime is 30018808103. The next prime is 30018808151. The reversal of 30018808128 is 82180881003.

It is a super-2 number, since 2×30018808128² (a number of 22 digits) contains 22 as substring.

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, 24700 + ... + 246267.

Almost surely, 2^30018808128 is an apocalyptic number.

It is an amenable number.

30018808128 is an abundant number, since it is smaller than the sum of its proper divisors (49543899904).

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

30018808128 is a wasteful number, since it uses less digits than its factorization.

30018808128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271559 (or 271549 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 39.

The spelling of 30018808128 in words is "thirty billion, eighteen million, eight hundred eight thousand, one hundred twenty-eight".