28925783472222 has 96 divisors (see below), whose sum is σ = 80525990714400. Its totient is φ = 7628778049536.

The previous prime is 28925783472191. The next prime is 28925783472241. The reversal of 28925783472222 is 22227438752982.

28925783472222 is a `hidden beast` number, since 2 + 8 + 9 + 2 + 578 + 34 + 7 + 2 + 2 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 28925783472222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 420422947 + ... + 420491742.

It is an arithmetic number, because the mean of its divisors is an integer number (838812403275).

Almost surely, 2^{28925783472222} is an apocalyptic number.

28925783472222 is an abundant number, since it is smaller than the sum of its proper divisors (51600207242178).

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

28925783472222 is a wasteful number, since it uses less digits than its factorization.

28925783472222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840914727 (or 840914714 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 63.

The spelling of 28925783472222 in words is "twenty-eight trillion, nine hundred twenty-five billion, seven hundred eighty-three million, four hundred seventy-two thousand, two hundred twenty-two".