12916547879 has 4 divisors (see below), whose sum is σ = 12916818384. Its totient is φ = 12916277376.

The previous prime is 12916547867. The next prime is 12916547911. The reversal of 12916547879 is 97874561921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12916547879 - 2²⁸ = 12648112423 is a prime.

It is a super-2 number, since 2×12916547879² (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 (12916517879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42362 + ... + 166215.

It is an arithmetic number, because the mean of its divisors is an integer number (3229204596).

Almost surely, 2^12916547879 is an apocalyptic number.

12916547879 is a deficient number, since it is larger than the sum of its proper divisors (270505).

12916547879 is an equidigital number, since it uses as much as digits as its factorization.

12916547879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270504.

The product of its digits is 7620480, while the sum is 59.

The spelling of 12916547879 in words is "twelve billion, nine hundred sixteen million, five hundred forty-seven thousand, eight hundred seventy-nine".