28224550000 has 60 divisors (see below), whose sum is σ = 68352078312. Its totient is φ = 11289800000.

The previous prime is 28224549973. The next prime is 28224550021. The reversal of 28224550000 is 5542282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232246 + ... + 332245.

Almost surely, 2^28224550000 is an apocalyptic number.

28224550000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28224550000 is an abundant number, since it is smaller than the sum of its proper divisors (40127528312).

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

28224550000 is an frugal number, since it uses more digits than its factorization.

28224550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564524 (or 564498 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 28224550000 in words is "twenty-eight billion, two hundred twenty-four million, five hundred fifty thousand".