26315969473 has 4 divisors (see below), whose sum is σ = 26374580100. Its totient is φ = 26257358848.

The previous prime is 26315969443. The next prime is 26315969489. The reversal of 26315969473 is 37496951362.

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 8767138689 + 17548830784 = 93633^2 + 132472^2 .

It is a cyclic number.

It is not a de Polignac number, because 26315969473 - 2⁵ = 26315969441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26315969443) 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, 29304640 + ... + 29305537.

It is an arithmetic number, because the mean of its divisors is an integer number (6593645025).

Almost surely, 2^26315969473 is an apocalyptic number.

It is an amenable number.

26315969473 is a deficient number, since it is larger than the sum of its proper divisors (58610627).

26315969473 is an equidigital number, since it uses as much as digits as its factorization.

26315969473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58610626.

The product of its digits is 7348320, while the sum is 55.

The spelling of 26315969473 in words is "twenty-six billion, three hundred fifteen million, nine hundred sixty-nine thousand, four hundred seventy-three".