26402527663 has 2 divisors, whose sum is σ = 26402527664. Its totient is φ = 26402527662.

The previous prime is 26402527597. The next prime is 26402527667. The reversal of 26402527663 is 36672520462.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26402527663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26402527667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13201263831 + 13201263832.

It is an arithmetic number, because the mean of its divisors is an integer number (13201263832).

Almost surely, 2^26402527663 is an apocalyptic number.

26402527663 is a deficient number, since it is larger than the sum of its proper divisors (1).

26402527663 is an equidigital number, since it uses as much as digits as its factorization.

26402527663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 26402527663 in words is "twenty-six billion, four hundred two million, five hundred twenty-seven thousand, six hundred sixty-three".