12879397452 has 30 divisors (see below), whose sum is σ = 30218882540. Its totient is φ = 4269413520.

The previous prime is 12879397417. The next prime is 12879397457. The reversal of 12879397452 is 25479397821.

It is a happy number.

12879397452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12879397392 and 12879397401.

It is not an unprimeable number, because it can be changed into a prime (12879397457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 71156802 + ... + 71156982.

Almost surely, 2^12879397452 is an apocalyptic number.

12879397452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12879397452 is an abundant number, since it is smaller than the sum of its proper divisors (17339485088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12879397452 is an frugal number, since it uses more digits than its factorization.

12879397452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 186 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The spelling of 12879397452 in words is "twelve billion, eight hundred seventy-nine million, three hundred ninety-seven thousand, four hundred fifty-two".