2656453398769 has 9 divisors (see below), whose sum is σ = 2665636624587. Its totient is φ = 2647301718024.

The previous prime is 2656453398701. The next prime is 2656453398779. The reversal of 2656453398769 is 9678933546562.

The square root of 2656453398769 is 1629863.

It is a perfect power (a square), and thus also a powerful number.

2656453398769 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8998988769 + 2647454410000 = 94863^2 + 1627100^2 .

It is not a de Polignac number, because 2656453398769 - 2²⁹ = 2655916527857 is a prime.

It is a super-2 number, since 2×2656453398769² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656453398779) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 500365287 + ... + 500370595.

Almost surely, 2^{2656453398769} is an apocalyptic number.

2656453398769 is the 1629863-rd square number.

2656453398769 is the 814932-nd centered octagonal number.

It is an amenable number.

2656453398769 is a deficient number, since it is larger than the sum of its proper divisors (9183225818).

2656453398769 is an frugal number, since it uses more digits than its factorization.

2656453398769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11232 (or 5616 counting only the distinct ones).

The product of its digits is 1763596800, while the sum is 73.

The spelling of 2656453398769 in words is "two trillion, six hundred fifty-six billion, four hundred fifty-three million, three hundred ninety-eight thousand, seven hundred sixty-nine".