26453232745 has 4 divisors (see below), whose sum is σ = 31743879300. Its totient is φ = 21162586192.

The previous prime is 26453232679. The next prime is 26453232761. The reversal of 26453232745 is 54723235462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20672975961 + 5780256784 = 143781^2 + 76028^2 .

It is a cyclic number.

It is not a de Polignac number, because 26453232745 - 2⁹ = 26453232233 is a prime.

It is a super-2 number, since 2×26453232745² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645323270 + ... + 2645323279.

It is an arithmetic number, because the mean of its divisors is an integer number (7935969825).

Almost surely, 2^26453232745 is an apocalyptic number.

It is an amenable number.

26453232745 is a deficient number, since it is larger than the sum of its proper divisors (5290646555).

26453232745 is an equidigital number, since it uses as much as digits as its factorization.

26453232745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290646554.

The product of its digits is 1209600, while the sum is 43.

The spelling of 26453232745 in words is "twenty-six billion, four hundred fifty-three million, two hundred thirty-two thousand, seven hundred forty-five".