26185817228 has 12 divisors (see below), whose sum is σ = 45862414752. Its totient is φ = 13082270160.

The previous prime is 26185817191. The next prime is 26185817243. The reversal of 26185817228 is 82271858162.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 2654075 + ... + 2663922.

It is an arithmetic number, because the mean of its divisors is an integer number (3821867896).

Almost surely, 2^26185817228 is an apocalyptic number.

It is an amenable number.

26185817228 is a deficient number, since it is larger than the sum of its proper divisors (19676597524).

26185817228 is a wasteful number, since it uses less digits than its factorization.

26185817228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319232 (or 5319230 counting only the distinct ones).

The product of its digits is 860160, while the sum is 50.

The spelling of 26185817228 in words is "twenty-six billion, one hundred eighty-five million, eight hundred seventeen thousand, two hundred twenty-eight".