12879390943 has 8 divisors (see below), whose sum is σ = 13059346608. Its totient is φ = 12700593024.

The previous prime is 12879390919. The next prime is 12879390947. The reversal of 12879390943 is 34909397821.

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 12879390943 - 2⁵ = 12879390911 is a prime.

It is a super-2 number, since 2×12879390943² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879390947) 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, 267021 + ... + 311542.

It is an arithmetic number, because the mean of its divisors is an integer number (1632418326).

Almost surely, 2^12879390943 is an apocalyptic number.

12879390943 is a deficient number, since it is larger than the sum of its proper divisors (179955665).

12879390943 is a wasteful number, since it uses less digits than its factorization.

12879390943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578873.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 12879390943 in words is "twelve billion, eight hundred seventy-nine million, three hundred ninety thousand, nine hundred forty-three".