30988887413 has 16 divisors (see below), whose sum is σ = 35772751872. Its totient is φ = 26567310000.

The previous prime is 30988887407. The next prime is 30988887431. The reversal of 30988887413 is 31478888903.

It is a de Polignac number, because none of the positive numbers 2^k-30988887413 is a prime.

It is a super-2 number, since 2×30988887413² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30988887403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844613 + ... + 880538.

It is an arithmetic number, because the mean of its divisors is an integer number (2235796992).

Almost surely, 2^30988887413 is an apocalyptic number.

It is an amenable number.

30988887413 is a deficient number, since it is larger than the sum of its proper divisors (4783864459).

30988887413 is a wasteful number, since it uses less digits than its factorization.

30988887413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725256.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 30988887413 in words is "thirty billion, nine hundred eighty-eight million, eight hundred eighty-seven thousand, four hundred thirteen".