26398977299 has 2 divisors, whose sum is σ = 26398977300. Its totient is φ = 26398977298.

The previous prime is 26398977281. The next prime is 26398977337. The reversal of 26398977299 is 99277989362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26398977299 - 2⁸ = 26398977043 is a prime.

It is not a weakly prime, because it can be changed into another prime (26398977599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13199488649 + 13199488650.

It is an arithmetic number, because the mean of its divisors is an integer number (13199488650).

Almost surely, 2^26398977299 is an apocalyptic number.

26398977299 is a deficient number, since it is larger than the sum of its proper divisors (1).

26398977299 is an equidigital number, since it uses as much as digits as its factorization.

26398977299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185177664, while the sum is 71.

The spelling of 26398977299 in words is "twenty-six billion, three hundred ninety-eight million, nine hundred seventy-seven thousand, two hundred ninety-nine".