13056261697 has 8 divisors (see below), whose sum is σ = 13272125480. Its totient is φ = 12840456960.

The previous prime is 13056261679. The next prime is 13056261721. The reversal of 13056261697 is 79616265031.

It is a Cunningham number, because it is equal to 114264²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 424524816 + 12631736881 = 20604^2 + 112391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13056261697 - 2²⁷ = 12922043969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13056261667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785323 + ... + 801775.

It is an arithmetic number, because the mean of its divisors is an integer number (1659015685).

Almost surely, 2^13056261697 is an apocalyptic number.

It is an amenable number.

13056261697 is a deficient number, since it is larger than the sum of its proper divisors (215863783).

13056261697 is a wasteful number, since it uses less digits than its factorization.

13056261697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29523.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 13056261697 in words is "thirteen billion, fifty-six million, two hundred sixty-one thousand, six hundred ninety-seven".