26868476399 has 2 divisors, whose sum is σ = 26868476400. Its totient is φ = 26868476398.

The previous prime is 26868476359. The next prime is 26868476429. The reversal of 26868476399 is 99367486862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26868476399 - 2²⁴ = 26851699183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26868476359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13434238199 + 13434238200.

It is an arithmetic number, because the mean of its divisors is an integer number (13434238200).

Almost surely, 2^26868476399 is an apocalyptic number.

26868476399 is a deficient number, since it is larger than the sum of its proper divisors (1).

26868476399 is an equidigital number, since it uses as much as digits as its factorization.

26868476399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188116992, while the sum is 68.

The spelling of 26868476399 in words is "twenty-six billion, eight hundred sixty-eight million, four hundred seventy-six thousand, three hundred ninety-nine".