30988574881 has 16 divisors (see below), whose sum is σ = 34342453440. Its totient is φ = 27724942080.

The previous prime is 30988574879. The next prime is 30988574891. The reversal of 30988574881 is 18847588903.

It is not a de Polignac number, because 30988574881 - 2¹ = 30988574879 is a prime.

It is a super-2 number, since 2×30988574881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30988574801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789325 + ... + 827653.

It is an arithmetic number, because the mean of its divisors is an integer number (2146403340).

Almost surely, 2^30988574881 is an apocalyptic number.

It is an amenable number.

30988574881 is a deficient number, since it is larger than the sum of its proper divisors (3353878559).

30988574881 is a wasteful number, since it uses less digits than its factorization.

30988574881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39504.

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 30988574881 in words is "thirty billion, nine hundred eighty-eight million, five hundred seventy-four thousand, eight hundred eighty-one".