25858068479 has 2 divisors, whose sum is σ = 25858068480. Its totient is φ = 25858068478.

The previous prime is 25858068469. The next prime is 25858068503. The reversal of 25858068479 is 97486085852.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25858068479 is a prime.

It is a super-3 number, since 3×25858068479³ (a number of 32 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25858068469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12929034239 + 12929034240.

It is an arithmetic number, because the mean of its divisors is an integer number (12929034240).

Almost surely, 2^25858068479 is an apocalyptic number.

25858068479 is a deficient number, since it is larger than the sum of its proper divisors (1).

25858068479 is an equidigital number, since it uses as much as digits as its factorization.

25858068479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38707200, while the sum is 62.

The spelling of 25858068479 in words is "twenty-five billion, eight hundred fifty-eight million, sixty-eight thousand, four hundred seventy-nine".