25863068939 has 2 divisors, whose sum is σ = 25863068940. Its totient is φ = 25863068938.

The previous prime is 25863068929. The next prime is 25863068941. The reversal of 25863068939 is 93986036852.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25863068939 - 2⁴ = 25863068923 is a prime.

Together with 25863068941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25863068909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12931534469 + 12931534470.

It is an arithmetic number, because the mean of its divisors is an integer number (12931534470).

Almost surely, 2^25863068939 is an apocalyptic number.

25863068939 is a deficient number, since it is larger than the sum of its proper divisors (1).

25863068939 is an equidigital number, since it uses as much as digits as its factorization.

25863068939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 25863068939 in words is "twenty-five billion, eight hundred sixty-three million, sixty-eight thousand, nine hundred thirty-nine".