25742958566672 has 20 divisors (see below), whose sum is σ = 50241047790876. Its totient is φ = 12777526878720.

The previous prime is 25742958566629. The next prime is 25742958566747. The reversal of 25742958566672 is 27666585924752.

It can be written as a sum of positive squares in 2 ways, for example, as 4920748412176 + 20822210154496 = 2218276^2 + 4563136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25742958566672.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5872023029 + ... + 5872027412.

Almost surely, 2^{25742958566672} is an apocalyptic number.

It is an amenable number.

25742958566672 is a deficient number, since it is larger than the sum of its proper divisors (24498089224204).

25742958566672 is a wasteful number, since it uses less digits than its factorization.

25742958566672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11744050586 (or 11744050580 counting only the distinct ones).

The product of its digits is 3048192000, while the sum is 74.

The spelling of 25742958566672 in words is "twenty-five trillion, seven hundred forty-two billion, nine hundred fifty-eight million, five hundred sixty-six thousand, six hundred seventy-two".