28382782225872 has 40 divisors (see below), whose sum is σ = 73358147545920. Its totient is φ = 9456287392000.

The previous prime is 28382782225849. The next prime is 28382782225927. The reversal of 28382782225872 is 27852228728382.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144901629 + ... + 145097372.

It is an arithmetic number, because the mean of its divisors is an integer number (1833953688648).

Almost surely, 2^{28382782225872} is an apocalyptic number.

It is an amenable number.

28382782225872 is an abundant number, since it is smaller than the sum of its proper divisors (44975365320048).

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

28382782225872 is a wasteful number, since it uses less digits than its factorization.

28382782225872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290001051 (or 290001045 counting only the distinct ones).

The product of its digits is 192675840, while the sum is 66.

The spelling of 28382782225872 in words is "twenty-eight trillion, three hundred eighty-two billion, seven hundred eighty-two million, two hundred twenty-five thousand, eight hundred seventy-two".