26105363663 has 2 divisors, whose sum is σ = 26105363664. Its totient is φ = 26105363662.

The previous prime is 26105363629. The next prime is 26105363689. The reversal of 26105363663 is 36636350162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26105363663 - 2²⁰ = 26104315087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26105363663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26105363623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13052681831 + 13052681832.

It is an arithmetic number, because the mean of its divisors is an integer number (13052681832).

Almost surely, 2^26105363663 is an apocalyptic number.

26105363663 is a deficient number, since it is larger than the sum of its proper divisors (1).

26105363663 is an equidigital number, since it uses as much as digits as its factorization.

26105363663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 41.

The spelling of 26105363663 in words is "twenty-six billion, one hundred five million, three hundred sixty-three thousand, six hundred sixty-three".