28447144260 has 24 divisors (see below), whose sum is σ = 79652004096. Its totient is φ = 7585905120.

The previous prime is 28447144177. The next prime is 28447144277. The reversal of 28447144260 is 6244174482.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237059476 + ... + 237059595.

It is an arithmetic number, because the mean of its divisors is an integer number (3318833504).

Almost surely, 2^28447144260 is an apocalyptic number.

28447144260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28447144260 is an abundant number, since it is smaller than the sum of its proper divisors (51204859836).

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

28447144260 is a wasteful number, since it uses less digits than its factorization.

28447144260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474119083 (or 474119081 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 42.

The spelling of 28447144260 in words is "twenty-eight billion, four hundred forty-seven million, one hundred forty-four thousand, two hundred sixty".