28274764822 has 16 divisors (see below), whose sum is σ = 42530054400. Its totient is φ = 14098127680.

The previous prime is 28274764813. The next prime is 28274764849. The reversal of 28274764822 is 22846747282.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28274764822.

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, 1269579 + ... + 1291657.

It is an arithmetic number, because the mean of its divisors is an integer number (2658128400).

Almost surely, 2^28274764822 is an apocalyptic number.

28274764822 is a deficient number, since it is larger than the sum of its proper divisors (14255289578).

28274764822 is a wasteful number, since it uses less digits than its factorization.

28274764822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23831.

The product of its digits is 4816896, while the sum is 52.

The spelling of 28274764822 in words is "twenty-eight billion, two hundred seventy-four million, seven hundred sixty-four thousand, eight hundred twenty-two".