13159765447 has 2 divisors, whose sum is σ = 13159765448. Its totient is φ = 13159765446.

The previous prime is 13159765397. The next prime is 13159765477. The reversal of 13159765447 is 74456795131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13159765447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13159765394 and 13159765403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13159765477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6579882723 + 6579882724.

It is an arithmetic number, because the mean of its divisors is an integer number (6579882724).

Almost surely, 2^13159765447 is an apocalyptic number.

13159765447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13159765447 is an equidigital number, since it uses as much as digits as its factorization.

13159765447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 52.

The spelling of 13159765447 in words is "thirteen billion, one hundred fifty-nine million, seven hundred sixty-five thousand, four hundred forty-seven".