25971688570452 has 24 divisors (see below), whose sum is σ = 60690652161216. Its totient is φ = 8644365881088.

The previous prime is 25971688570439. The next prime is 25971688570453. The reversal of 25971688570452 is 25407588617952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25971688570453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607946888 + ... + 1607963039.

It is an arithmetic number, because the mean of its divisors is an integer number (2528777173384).

Almost surely, 2^{25971688570452} is an apocalyptic number.

It is an amenable number.

25971688570452 is an abundant number, since it is smaller than the sum of its proper divisors (34718963590764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25971688570452 is a wasteful number, since it uses less digits than its factorization.

25971688570452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215910607 (or 3215910605 counting only the distinct ones).

The product of its (nonzero) digits is 338688000, while the sum is 69.

The spelling of 25971688570452 in words is "twenty-five trillion, nine hundred seventy-one billion, six hundred eighty-eight million, five hundred seventy thousand, four hundred fifty-two".