28916212224 has 40 divisors (see below), whose sum is σ = 77034600720. Its totient is φ = 9638736896.

The previous prime is 28916212211. The next prime is 28916212253. The reversal of 28916212224 is 42221261982.

It is a happy number.

It is a super-2 number, since 2×28916212224² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9411294 + ... + 9414365.

It is an arithmetic number, because the mean of its divisors is an integer number (1925865018).

Almost surely, 2^28916212224 is an apocalyptic number.

28916212224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28916212224 is an abundant number, since it is smaller than the sum of its proper divisors (48118388496).

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

28916212224 is an equidigital number, since it uses as much as digits as its factorization.

28916212224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825680 (or 18825664 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The spelling of 28916212224 in words is "twenty-eight billion, nine hundred sixteen million, two hundred twelve thousand, two hundred twenty-four".