12231459779 has 32 divisors (see below), whose sum is σ = 16425615360. Its totient is φ = 8819344800.

The previous prime is 12231459769. The next prime is 12231459787. The reversal of 12231459779 is 97795413221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12231459779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12231459769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34307 + ... + 160124.

It is an arithmetic number, because the mean of its divisors is an integer number (513300480).

Almost surely, 2^12231459779 is an apocalyptic number.

12231459779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12231459779 is a deficient number, since it is larger than the sum of its proper divisors (4194155581).

12231459779 is a wasteful number, since it uses less digits than its factorization.

12231459779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194511.

The product of its digits is 952560, while the sum is 50.

The spelling of 12231459779 in words is "twelve billion, two hundred thirty-one million, four hundred fifty-nine thousand, seven hundred seventy-nine".