25378725431268 has 72 divisors (see below), whose sum is σ = 70163665266240. Its totient is φ = 7670752829760.

The previous prime is 25378725431209. The next prime is 25378725431303. The reversal of 25378725431268 is 86213452787352.

25378725431268 is a `hidden beast` number, since 2 + 5 + 3 + 7 + 8 + 7 + 254 + 312 + 68 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 82220880 + ... + 82528967.

It is an arithmetic number, because the mean of its divisors is an integer number (974495350920).

Almost surely, 2^{25378725431268} is an apocalyptic number.

It is an amenable number.

25378725431268 is an abundant number, since it is smaller than the sum of its proper divisors (44784939834972).

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

25378725431268 is a wasteful number, since it uses less digits than its factorization.

25378725431268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164750257 (or 164750252 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 63.

The spelling of 25378725431268 in words is "twenty-five trillion, three hundred seventy-eight billion, seven hundred twenty-five million, four hundred thirty-one thousand, two hundred sixty-eight".