30744709812 has 24 divisors (see below), whose sum is σ = 79708507200. Its totient is φ = 10248236568.

The previous prime is 30744709781. The next prime is 30744709813. The reversal of 30744709812 is 21890744703.

30744709812 is a `hidden beast` number, since 30 + 74 + 470 + 9 + 81 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30744709813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142336512 + ... + 142336727.

It is an arithmetic number, because the mean of its divisors is an integer number (3321187800).

Almost surely, 2^30744709812 is an apocalyptic number.

It is an amenable number.

30744709812 is an abundant number, since it is smaller than the sum of its proper divisors (48963797388).

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

30744709812 is a wasteful number, since it uses less digits than its factorization.

30744709812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284673252 (or 284673244 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 30744709812 in words is "thirty billion, seven hundred forty-four million, seven hundred nine thousand, eight hundred twelve".