12954416779 has 2 divisors, whose sum is σ = 12954416780. Its totient is φ = 12954416778.

The previous prime is 12954416773. The next prime is 12954416791. The reversal of 12954416779 is 97761445921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12954416779 - 2²³ = 12946028171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12954416773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477208389 + 6477208390.

It is an arithmetic number, because the mean of its divisors is an integer number (6477208390).

Almost surely, 2^12954416779 is an apocalyptic number.

12954416779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12954416779 is an equidigital number, since it uses as much as digits as its factorization.

12954416779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 55.

The spelling of 12954416779 in words is "twelve billion, nine hundred fifty-four million, four hundred sixteen thousand, seven hundred seventy-nine".