25870958699 has 2 divisors, whose sum is σ = 25870958700. Its totient is φ = 25870958698.

The previous prime is 25870958677. The next prime is 25870958747. The reversal of 25870958699 is 99685907852.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25870958699 is a prime.

It is not a weakly prime, because it can be changed into another prime (25870958599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12935479349 + 12935479350.

It is an arithmetic number, because the mean of its divisors is an integer number (12935479350).

Almost surely, 2^25870958699 is an apocalyptic number.

25870958699 is a deficient number, since it is larger than the sum of its proper divisors (1).

25870958699 is an equidigital number, since it uses as much as digits as its factorization.

25870958699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97977600, while the sum is 68.

The spelling of 25870958699 in words is "twenty-five billion, eight hundred seventy million, nine hundred fifty-eight thousand, six hundred ninety-nine".