26031256663 has 2 divisors, whose sum is σ = 26031256664. Its totient is φ = 26031256662.

The previous prime is 26031256651. The next prime is 26031256697. The reversal of 26031256663 is 36665213062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26031256663 - 2²⁹ = 25494385751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26031256463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13015628331 + 13015628332.

It is an arithmetic number, because the mean of its divisors is an integer number (13015628332).

Almost surely, 2^26031256663 is an apocalyptic number.

26031256663 is a deficient number, since it is larger than the sum of its proper divisors (1).

26031256663 is an equidigital number, since it uses as much as digits as its factorization.

26031256663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 26031256663 in words is "twenty-six billion, thirty-one million, two hundred fifty-six thousand, six hundred sixty-three".