30057079721 has 8 divisors (see below), whose sum is σ = 32273385984. Its totient is φ = 27890578240.

The previous prime is 30057079631. The next prime is 30057079729. The reversal of 30057079721 is 12797075003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30057079721 - 2³⁰ = 28983337897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30057079729) 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, 12449945 + ... + 12452358.

It is an arithmetic number, because the mean of its divisors is an integer number (4034173248).

Almost surely, 2^30057079721 is an apocalyptic number.

It is an amenable number.

30057079721 is a deficient number, since it is larger than the sum of its proper divisors (2216306263).

30057079721 is a wasteful number, since it uses less digits than its factorization.

30057079721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24902391.

The product of its (nonzero) digits is 92610, while the sum is 41.

The spelling of 30057079721 in words is "thirty billion, fifty-seven million, seventy-nine thousand, seven hundred twenty-one".