30479223889 has 3 divisors (see below), whose sum is σ = 30479398473. Its totient is φ = 30479049306.

The previous prime is 30479223869. The next prime is 30479223893. The reversal of 30479223889 is 98832297403.

The square root of 30479223889 is 174583.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 30479223889 - 2¹⁵ = 30479191121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30479223809) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 87292 + ... + 261874.

It is an arithmetic number, because the mean of its divisors is an integer number (10159799491).

Almost surely, 2^30479223889 is an apocalyptic number.

30479223889 is the 174583-rd square number.

30479223889 is the 87292-nd centered octagonal number.

It is an amenable number.

30479223889 is a deficient number, since it is larger than the sum of its proper divisors (174584).

30479223889 is an frugal number, since it uses more digits than its factorization.

30479223889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349166 (or 174583 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 30479223889 in words is "thirty billion, four hundred seventy-nine million, two hundred twenty-three thousand, eight hundred eighty-nine".