26315816803 has 2 divisors, whose sum is σ = 26315816804. Its totient is φ = 26315816802.

The previous prime is 26315816759. The next prime is 26315816833. The reversal of 26315816803 is 30861851362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26315816803 - 2⁹ = 26315816291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26315816803.

It is not a weakly prime, because it can be changed into another prime (26315816833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13157908401 + 13157908402.

It is an arithmetic number, because the mean of its divisors is an integer number (13157908402).

Almost surely, 2^26315816803 is an apocalyptic number.

26315816803 is a deficient number, since it is larger than the sum of its proper divisors (1).

26315816803 is an equidigital number, since it uses as much as digits as its factorization.

26315816803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 26315816803 in words is "twenty-six billion, three hundred fifteen million, eight hundred sixteen thousand, eight hundred three".