25763839999 has 2 divisors, whose sum is σ = 25763840000. Its totient is φ = 25763839998.

The previous prime is 25763839991. The next prime is 25763840009. The reversal of 25763839999 is 99993836752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25763839999 - 2³ = 25763839991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25763839991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12881919999 + 12881920000.

It is an arithmetic number, because the mean of its divisors is an integer number (12881920000).

Almost surely, 2^25763839999 is an apocalyptic number.

25763839999 is a deficient number, since it is larger than the sum of its proper divisors (1).

25763839999 is an equidigital number, since it uses as much as digits as its factorization.

25763839999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198404640, while the sum is 70.

The spelling of 25763839999 in words is "twenty-five billion, seven hundred sixty-three million, eight hundred thirty-nine thousand, nine hundred ninety-nine".