25868190422 has 16 divisors (see below), whose sum is σ = 38988492480. Its totient is φ = 12872071368.

The previous prime is 25868190419. The next prime is 25868190427. The reversal of 25868190422 is 22409186852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25868190427) by changing a digit.

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, 1324613 + ... + 1343999.

It is an arithmetic number, because the mean of its divisors is an integer number (2436780780).

Almost surely, 2^25868190422 is an apocalyptic number.

25868190422 is a deficient number, since it is larger than the sum of its proper divisors (13120302058).

25868190422 is a wasteful number, since it uses less digits than its factorization.

25868190422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22555.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 25868190422 in words is "twenty-five billion, eight hundred sixty-eight million, one hundred ninety thousand, four hundred twenty-two".