13957395679 has 2 divisors, whose sum is σ = 13957395680. Its totient is φ = 13957395678.

The previous prime is 13957395643. The next prime is 13957395721. The reversal of 13957395679 is 97659375931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13957395679 - 2¹¹ = 13957393631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13957395679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13957395629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978697839 + 6978697840.

It is an arithmetic number, because the mean of its divisors is an integer number (6978697840).

Almost surely, 2^13957395679 is an apocalyptic number.

13957395679 is a deficient number, since it is larger than the sum of its proper divisors (1).

13957395679 is an equidigital number, since it uses as much as digits as its factorization.

13957395679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48223350, while the sum is 64.

The spelling of 13957395679 in words is "thirteen billion, nine hundred fifty-seven million, three hundred ninety-five thousand, six hundred seventy-nine".