26316515453 has 4 divisors (see below), whose sum is σ = 26461910748. Its totient is φ = 26171120160.

The previous prime is 26316515417. The next prime is 26316515503. The reversal of 26316515453 is 35451561362.

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 753941764 + 25562573689 = 27458^2 + 159883^2 .

It is a cyclic number.

It is not a de Polignac number, because 26316515453 - 2¹⁶ = 26316449917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26316515453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26316515413) 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, 72697376 + ... + 72697737.

It is an arithmetic number, because the mean of its divisors is an integer number (6615477687).

Almost surely, 2^26316515453 is an apocalyptic number.

It is an amenable number.

26316515453 is a deficient number, since it is larger than the sum of its proper divisors (145395295).

26316515453 is a wasteful number, since it uses less digits than its factorization.

26316515453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145395294.

The product of its digits is 324000, while the sum is 41.

The spelling of 26316515453 in words is "twenty-six billion, three hundred sixteen million, five hundred fifteen thousand, four hundred fifty-three".