26726600399 has 2 divisors, whose sum is σ = 26726600400. Its totient is φ = 26726600398.

The previous prime is 26726600359. The next prime is 26726600413. The reversal of 26726600399 is 99300662762.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26726600399 is a prime.

It is a super-2 number, since 2×26726600399² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26726600359) 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, 13363300199 + 13363300200.

It is an arithmetic number, because the mean of its divisors is an integer number (13363300200).

Almost surely, 2^26726600399 is an apocalyptic number.

26726600399 is a deficient number, since it is larger than the sum of its proper divisors (1).

26726600399 is an equidigital number, since it uses as much as digits as its factorization.

26726600399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 26726600399 in words is "twenty-six billion, seven hundred twenty-six million, six hundred thousand, three hundred ninety-nine".