13140565679 has 2 divisors, whose sum is σ = 13140565680. Its totient is φ = 13140565678.

The previous prime is 13140565639. The next prime is 13140565681. The reversal of 13140565679 is 97656504131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13140565679 - 2²⁰ = 13139517103 is a prime.

It is a super-2 number, since 2×13140565679² (a number of 21 digits) contains 22 as substring.

Together with 13140565681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13140565639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6570282839 + 6570282840.

It is an arithmetic number, because the mean of its divisors is an integer number (6570282840).

Almost surely, 2^13140565679 is an apocalyptic number.

13140565679 is a deficient number, since it is larger than the sum of its proper divisors (1).

13140565679 is an equidigital number, since it uses as much as digits as its factorization.

13140565679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 13140565679 in words is "thirteen billion, one hundred forty million, five hundred sixty-five thousand, six hundred seventy-nine".