28174255316722 has 4 divisors (see below), whose sum is σ = 42261382975086. Its totient is φ = 14087127658360.

The previous prime is 28174255316659. The next prime is 28174255316747. The reversal of 28174255316722 is 22761355247182.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27889922150281 + 284333166441 = 5281091^2 + 533229^2 .

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 as a sum of consecutive naturals, namely, 7043563829179 + ... + 7043563829182.

Almost surely, 2^{28174255316722} is an apocalyptic number.

28174255316722 is a deficient number, since it is larger than the sum of its proper divisors (14087127658364).

28174255316722 is a wasteful number, since it uses less digits than its factorization.

28174255316722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14087127658363.

The product of its digits is 11289600, while the sum is 55.

The spelling of 28174255316722 in words is "twenty-eight trillion, one hundred seventy-four billion, two hundred fifty-five million, three hundred sixteen thousand, seven hundred twenty-two".