28422445872 has 20 divisors (see below), whose sum is σ = 73424651960. Its totient is φ = 9474148608.

The previous prime is 28422445853. The next prime is 28422445873. The reversal of 28422445872 is 27854422482.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 592134289 = 28422445872 / (2 + 8 + 4 + 2 + 2 + 4 + 4 + 5 + 8 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (28422445873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296067097 + ... + 296067192.

It is an arithmetic number, because the mean of its divisors is an integer number (3671232598).

Almost surely, 2^28422445872 is an apocalyptic number.

It is an amenable number.

28422445872 is an abundant number, since it is smaller than the sum of its proper divisors (45002206088).

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

28422445872 is a wasteful number, since it uses less digits than its factorization.

28422445872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592134300 (or 592134294 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 48.

The spelling of 28422445872 in words is "twenty-eight billion, four hundred twenty-two million, four hundred forty-five thousand, eight hundred seventy-two".