28480999800 has 96 divisors (see below), whose sum is σ = 96317585280. Its totient is φ = 6904483200.

The previous prime is 28480999769. The next prime is 28480999823. The reversal of 28480999800 is 899908482.

It is a super-2 number, since 2×28480999800² (a number of 22 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 23 ways as a sum of consecutive naturals, for example, 2151052 + ... + 2164251.

It is an arithmetic number, because the mean of its divisors is an integer number (1003308180).

Almost surely, 2^28480999800 is an apocalyptic number.

28480999800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28480999800 is an abundant number, since it is smaller than the sum of its proper divisors (67836585480).

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

28480999800 is a wasteful number, since it uses less digits than its factorization.

28480999800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315333 (or 4315324 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 57.

The spelling of 28480999800 in words is "twenty-eight billion, four hundred eighty million, nine hundred ninety-nine thousand, eight hundred".