25826334894 has 16 divisors (see below), whose sum is σ = 57391855440. Its totient is φ = 8608778280.

The previous prime is 25826334869. The next prime is 25826334901. The reversal of 25826334894 is 49843362852.

25826334894 is a `hidden beast` number, since 25 + 82 + 63 + 3 + 489 + 4 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 478265461 = 25826334894 / (2 + 5 + 8 + 2 + 6 + 3 + 3 + 4 + 8 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 25826334894.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239132677 + ... + 239132784.

It is an arithmetic number, because the mean of its divisors is an integer number (3586990965).

Almost surely, 2^25826334894 is an apocalyptic number.

25826334894 is an abundant number, since it is smaller than the sum of its proper divisors (31565520546).

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

25826334894 is a wasteful number, since it uses less digits than its factorization.

25826334894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478265472 (or 478265466 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 25826334894 in words is "twenty-five billion, eight hundred twenty-six million, three hundred thirty-four thousand, eight hundred ninety-four".