28183939291120 has 80 divisors (see below), whose sum is σ = 65575100067840. Its totient is φ = 11265415891200.

The previous prime is 28183939291117. The next prime is 28183939291139. The reversal of 28183939291120 is 2119293938182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×28183939291120² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279274505 + ... + 1279296535.

It is an arithmetic number, because the mean of its divisors is an integer number (819688750848).

Almost surely, 2^{28183939291120} is an apocalyptic number.

28183939291120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28183939291120 is an abundant number, since it is smaller than the sum of its proper divisors (37391160776720).

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

28183939291120 is a wasteful number, since it uses less digits than its factorization.

28183939291120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32894 (or 32888 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 28183939291120 in words is "twenty-eight trillion, one hundred eighty-three billion, nine hundred thirty-nine million, two hundred ninety-one thousand, one hundred twenty".