30047932475 has 18 divisors (see below), whose sum is σ = 40650546636. Its totient is φ = 21850951200.

The previous prime is 30047932457. The next prime is 30047932501. The reversal of 30047932475 is 57423974003.

It is a de Polignac number, because none of the positive numbers 2^k-30047932475 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2869349 + ... + 2879801.

It is an arithmetic number, because the mean of its divisors is an integer number (2258363702).

Almost surely, 2^30047932475 is an apocalyptic number.

30047932475 is a deficient number, since it is larger than the sum of its proper divisors (10602614161).

30047932475 is an frugal number, since it uses more digits than its factorization.

30047932475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20927 (or 10469 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 44.

Multiplying 30047932475 by its sum of digits (44), we get a square (1322109028900 = 1149830²).

The spelling of 30047932475 in words is "thirty billion, forty-seven million, nine hundred thirty-two thousand, four hundred seventy-five".