30918769929 has 20 divisors (see below), whose sum is σ = 46596049236. Its totient is φ = 20430095616.

The previous prime is 30918769919. The next prime is 30918769963. The reversal of 30918769929 is 92996781903.

It is a happy number.

30918769929 is a `hidden beast` number, since 309 + 187 + 69 + 92 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4029329529 + 26889440400 = 63477^2 + 163980^2 .

It is not a de Polignac number, because 30918769929 - 2⁴ = 30918769913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30918769919) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1679844 + ... + 1698149.

Almost surely, 2^30918769929 is an apocalyptic number.

It is an amenable number.

30918769929 is a deficient number, since it is larger than the sum of its proper divisors (15677279307).

30918769929 is a wasteful number, since it uses less digits than its factorization.

30918769929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378118 (or 3378109 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The spelling of 30918769929 in words is "thirty billion, nine hundred eighteen million, seven hundred sixty-nine thousand, nine hundred twenty-nine".