12457798079 has 2 divisors, whose sum is σ = 12457798080. Its totient is φ = 12457798078.

The previous prime is 12457798069. The next prime is 12457798091. The reversal of 12457798079 is 97089775421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12457798079 - 2¹² = 12457793983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12457798049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228899039 + 6228899040.

It is an arithmetic number, because the mean of its divisors is an integer number (6228899040).

Almost surely, 2^12457798079 is an apocalyptic number.

12457798079 is a deficient number, since it is larger than the sum of its proper divisors (1).

12457798079 is an equidigital number, since it uses as much as digits as its factorization.

12457798079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 12457798079 in words is "twelve billion, four hundred fifty-seven million, seven hundred ninety-eight thousand, seventy-nine".