30634398918 has 12 divisors (see below), whose sum is σ = 66374531028. Its totient is φ = 10211466300.

The previous prime is 30634398913. The next prime is 30634398929. The reversal of 30634398918 is 81989343603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30634398913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850955508 + ... + 850955543.

It is an arithmetic number, because the mean of its divisors is an integer number (5531210919).

Almost surely, 2^30634398918 is an apocalyptic number.

30634398918 is an abundant number, since it is smaller than the sum of its proper divisors (35740132110).

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

30634398918 is a wasteful number, since it uses less digits than its factorization.

30634398918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701911059 (or 1701911056 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 30634398918 in words is "thirty billion, six hundred thirty-four million, three hundred ninety-eight thousand, nine hundred eighteen".