28182120092920 has 64 divisors (see below), whose sum is σ = 63665538300000. Its totient is φ = 11227382592000.

The previous prime is 28182120092897. The next prime is 28182120092921. The reversal of 28182120092920 is 2929002128182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28182120092921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247700206 + ... + 247813954.

Almost surely, 2^{28182120092920} is an apocalyptic number.

28182120092920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28182120092920 is an abundant number, since it is smaller than the sum of its proper divisors (35483418207080).

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

28182120092920 is a wasteful number, since it uses less digits than its factorization.

28182120092920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138688 (or 138684 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 28182120092920 in words is "twenty-eight trillion, one hundred eighty-two billion, one hundred twenty million, ninety-two thousand, nine hundred twenty".