26425455399 has 12 divisors (see below), whose sum is σ = 43622974096. Its totient is φ = 15100260192.

The previous prime is 26425455319. The next prime is 26425455409. The reversal of 26425455399 is 99355452462.

26425455399 is a `hidden beast` number, since 2 + 6 + 4 + 2 + 545 + 5 + 3 + 99 = 666.

It is not a de Polignac number, because 26425455399 - 2⁸ = 26425455143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26425455319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209725774 + ... + 209725899.

Almost surely, 2^26425455399 is an apocalyptic number.

26425455399 is a deficient number, since it is larger than the sum of its proper divisors (17197518697).

26425455399 is a wasteful number, since it uses less digits than its factorization.

26425455399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419451686 (or 419451683 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 54.

The spelling of 26425455399 in words is "twenty-six billion, four hundred twenty-five million, four hundred fifty-five thousand, three hundred ninety-nine".