25790172266 has 16 divisors (see below), whose sum is σ = 39077385984. Its totient is φ = 12764483184.

The previous prime is 25790172259. The next prime is 25790172277. The reversal of 25790172266 is 66227109752.

It is a self number, because there is not a number n which added to its sum of digits gives 25790172266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484991 + ... + 535533.

It is an arithmetic number, because the mean of its divisors is an integer number (2442336624).

Almost surely, 2^25790172266 is an apocalyptic number.

25790172266 is a deficient number, since it is larger than the sum of its proper divisors (13287213718).

25790172266 is a wasteful number, since it uses less digits than its factorization.

25790172266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53125.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 25790172266 in words is "twenty-five billion, seven hundred ninety million, one hundred seventy-two thousand, two hundred sixty-six".