11257264717 has 4 divisors (see below), whose sum is σ = 11260133820. Its totient is φ = 11254395616.

The previous prime is 11257264709. The next prime is 11257264721. The reversal of 11257264717 is 71746275211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71746275211 = 13 ⋅5518944247.

It can be written as a sum of positive squares in 2 ways, for example, as 1387637001 + 9869627716 = 37251^2 + 99346^2 .

It is a cyclic number.

It is not a de Polignac number, because 11257264717 - 2³ = 11257264709 is a prime.

It is a super-2 number, since 2×11257264717² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11257264727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428658 + ... + 1436515.

It is an arithmetic number, because the mean of its divisors is an integer number (2815033455).

Almost surely, 2^11257264717 is an apocalyptic number.

It is an amenable number.

11257264717 is a deficient number, since it is larger than the sum of its proper divisors (2869103).

11257264717 is an equidigital number, since it uses as much as digits as its factorization.

11257264717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869102.

The product of its digits is 164640, while the sum is 43.

The spelling of 11257264717 in words is "eleven billion, two hundred fifty-seven million, two hundred sixty-four thousand, seven hundred seventeen".