28469878800 has 120 divisors (see below), whose sum is σ = 99489331680. Its totient is φ = 6901785600.

The previous prime is 28469878799. The next prime is 28469878817. The reversal of 28469878800 is 887896482.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1065205 + ... + 1091604.

It is an arithmetic number, because the mean of its divisors is an integer number (829077764).

Almost surely, 2^28469878800 is an apocalyptic number.

28469878800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28469878800 is an abundant number, since it is smaller than the sum of its proper divisors (71019452880).

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

28469878800 is a wasteful number, since it uses less digits than its factorization.

28469878800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156841 (or 2156830 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 60.

The spelling of 28469878800 in words is "twenty-eight billion, four hundred sixty-nine million, eight hundred seventy-eight thousand, eight hundred".