26345630263 has 2 divisors, whose sum is σ = 26345630264. Its totient is φ = 26345630262.

The previous prime is 26345630243. The next prime is 26345630273. The reversal of 26345630263 is 36203654362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26345630263 - 2⁵ = 26345630231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26345630243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13172815131 + 13172815132.

It is an arithmetic number, because the mean of its divisors is an integer number (13172815132).

Almost surely, 2^26345630263 is an apocalyptic number.

26345630263 is a deficient number, since it is larger than the sum of its proper divisors (1).

26345630263 is an equidigital number, since it uses as much as digits as its factorization.

26345630263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 40.

The spelling of 26345630263 in words is "twenty-six billion, three hundred forty-five million, six hundred thirty thousand, two hundred sixty-three".