25906872806286 has 8 divisors (see below), whose sum is σ = 51813745612584. Its totient is φ = 8635624268760.

The previous prime is 25906872806273. The next prime is 25906872806327. The reversal of 25906872806286 is 68260827860952.

It is a sphenic number, since it is the product of 3 distinct primes.

25906872806286 is an admirable number.

It is a super-2 number, since 2×25906872806286² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25906872806286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158906067185 + ... + 2158906067196.

It is an arithmetic number, because the mean of its divisors is an integer number (6476718201573).

Almost surely, 2^{25906872806286} is an apocalyptic number.

25906872806286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25906872806286 is a wasteful number, since it uses less digits than its factorization.

25906872806286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317812134386.

The product of its (nonzero) digits is 278691840, while the sum is 69.

The spelling of 25906872806286 in words is "twenty-five trillion, nine hundred six billion, eight hundred seventy-two million, eight hundred six thousand, two hundred eighty-six".