26452565317 has 4 divisors (see below), whose sum is σ = 26454182220. Its totient is φ = 26450948416.

The previous prime is 26452565311. The next prime is 26452565327. The reversal of 26452565317 is 71356525462.

It is a happy number.

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 9372950596 + 17079614721 = 96814^2 + 130689^2 .

It is a cyclic number.

It is not a de Polignac number, because 26452565317 - 2³ = 26452565309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26452565311) 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, 783658 + ... + 816715.

It is an arithmetic number, because the mean of its divisors is an integer number (6613545555).

Almost surely, 2^26452565317 is an apocalyptic number.

It is an amenable number.

26452565317 is a deficient number, since it is larger than the sum of its proper divisors (1616903).

26452565317 is a wasteful number, since it uses less digits than its factorization.

26452565317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616902.

The product of its digits is 1512000, while the sum is 46.

The spelling of 26452565317 in words is "twenty-six billion, four hundred fifty-two million, five hundred sixty-five thousand, three hundred seventeen".