25757865705717 has 12 divisors (see below), whose sum is σ = 37205964126240. Its totient is φ = 17171837498088.

The previous prime is 25757865705707. The next prime is 25757865705773. The reversal of 25757865705717 is 71750756875752.

It is not a de Polignac number, because 25757865705717 - 2⁴ = 25757865705701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25757865705707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3800473 + ... + 8121534.

It is an arithmetic number, because the mean of its divisors is an integer number (3100497010520).

Almost surely, 2^{25757865705717} is an apocalyptic number.

It is an amenable number.

25757865705717 is a deficient number, since it is larger than the sum of its proper divisors (11448098420523).

25757865705717 is a wasteful number, since it uses less digits than its factorization.

25757865705717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12162072 (or 12162069 counting only the distinct ones).

The product of its (nonzero) digits is 1008420000, while the sum is 72.

The spelling of 25757865705717 in words is "twenty-five trillion, seven hundred fifty-seven billion, eight hundred sixty-five million, seven hundred five thousand, seven hundred seventeen".