30909789432 has 64 divisors (see below), whose sum is σ = 88821252000. Its totient is φ = 9947976192.

The previous prime is 30909789347. The next prime is 30909789433. The reversal of 30909789432 is 23498790903.

30909789432 is a `hidden beast` number, since 30 + 90 + 97 + 8 + 9 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30909789433) 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, 2460993 + ... + 2473520.

Almost surely, 2^30909789432 is an apocalyptic number.

It is an amenable number.

30909789432 is an abundant number, since it is smaller than the sum of its proper divisors (57911462568).

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

30909789432 is a wasteful number, since it uses less digits than its factorization.

30909789432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934557 (or 4934547 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 30909789432 in words is "thirty billion, nine hundred nine million, seven hundred eighty-nine thousand, four hundred thirty-two".