26149699 has 2 divisors, whose sum is σ = 26149700. Its totient is φ = 26149698.

The previous prime is 26149693. The next prime is 26149703. The reversal of 26149699 is 99694162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26149699 - 2³ = 26149691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26149691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13074849 + 13074850.

It is an arithmetic number, because the mean of its divisors is an integer number (13074850).

Almost surely, 2^26149699 is an apocalyptic number.

26149699 is a deficient number, since it is larger than the sum of its proper divisors (1).

26149699 is an equidigital number, since it uses as much as digits as its factorization.

26149699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 26149699 is about 5113.6776394294. The cubic root of 26149699 is about 296.8170866755.

The spelling of 26149699 in words is "twenty-six million, one hundred forty-nine thousand, six hundred ninety-nine".