13065857279 has 2 divisors, whose sum is σ = 13065857280. Its totient is φ = 13065857278.

The previous prime is 13065857239. The next prime is 13065857291. The reversal of 13065857279 is 97275856031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13065857279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13065857279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13065857219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6532928639 + 6532928640.

It is an arithmetic number, because the mean of its divisors is an integer number (6532928640).

Almost surely, 2^13065857279 is an apocalyptic number.

13065857279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13065857279 is an equidigital number, since it uses as much as digits as its factorization.

13065857279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 53.

It can be divided in two parts, 1306 and 5857279, that added together give a palindrome (5858585).

The spelling of 13065857279 in words is "thirteen billion, sixty-five million, eight hundred fifty-seven thousand, two hundred seventy-nine".