28752055212 has 54 divisors (see below), whose sum is σ = 69366003084. Its totient is φ = 9268982640.

The previous prime is 28752055183. The next prime is 28752055219. The reversal of 28752055212 is 21255025782.

It is not an unprimeable number, because it can be changed into a prime (28752055219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18208239 + ... + 18209817.

Almost surely, 2^28752055212 is an apocalyptic number.

It is an amenable number.

28752055212 is an abundant number, since it is smaller than the sum of its proper divisors (40613947872).

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

28752055212 is an equidigital number, since it uses as much as digits as its factorization.

28752055212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 39.

The spelling of 28752055212 in words is "twenty-eight billion, seven hundred fifty-two million, fifty-five thousand, two hundred twelve".