26263990799 has 2 divisors, whose sum is σ = 26263990800. Its totient is φ = 26263990798.

The previous prime is 26263990777. The next prime is 26263990801. The reversal of 26263990799 is 99709936262.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26263990799 is a prime.

Together with 26263990801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26263990759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13131995399 + 13131995400.

It is an arithmetic number, because the mean of its divisors is an integer number (13131995400).

Almost surely, 2^26263990799 is an apocalyptic number.

26263990799 is a deficient number, since it is larger than the sum of its proper divisors (1).

26263990799 is an equidigital number, since it uses as much as digits as its factorization.

26263990799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19840464, while the sum is 62.

The spelling of 26263990799 in words is "twenty-six billion, two hundred sixty-three million, nine hundred ninety thousand, seven hundred ninety-nine".