30747243789 has 8 divisors (see below), whose sum is σ = 45551472320. Its totient is φ = 20498162508.

The previous prime is 30747243757. The next prime is 30747243799. The reversal of 30747243789 is 98734274703.

It is not a de Polignac number, because 30747243789 - 2⁵ = 30747243757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30747243739) 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, 569393377 + ... + 569393430.

It is an arithmetic number, because the mean of its divisors is an integer number (5693934040).

Almost surely, 2^30747243789 is an apocalyptic number.

It is an amenable number.

30747243789 is a deficient number, since it is larger than the sum of its proper divisors (14804228531).

30747243789 is a wasteful number, since it uses less digits than its factorization.

30747243789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138786816 (or 1138786810 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 30747243789 in words is "thirty billion, seven hundred forty-seven million, two hundred forty-three thousand, seven hundred eighty-nine".