12795455689 has 3 divisors (see below), whose sum is σ = 12795568807. Its totient is φ = 12795342572.

The previous prime is 12795455683. The next prime is 12795455731. The reversal of 12795455689 is 98655459721.

The square root of 12795455689 is 113117.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 4314519225 + 8480936464 = 65685^2 + 92092^2 .

It is not a de Polignac number, because 12795455689 - 2³ = 12795455681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12795455681) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 56559 + ... + 169675.

Almost surely, 2^12795455689 is an apocalyptic number.

12795455689 is the 113117-th square number.

12795455689 is the 56559-th centered octagonal number.

It is an amenable number.

12795455689 is a deficient number, since it is larger than the sum of its proper divisors (113118).

12795455689 is an frugal number, since it uses more digits than its factorization.

12795455689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226234 (or 113117 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 61.

The spelling of 12795455689 in words is "twelve billion, seven hundred ninety-five million, four hundred fifty-five thousand, six hundred eighty-nine".