28273387000 has 64 divisors (see below), whose sum is σ = 69641863200. Its totient is φ = 10714118400.

The previous prime is 28273386997. The next prime is 28273387013. The reversal of 28273387000 is 78337282.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 725037 + ... + 763036.

Almost surely, 2^28273387000 is an apocalyptic number.

28273387000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28273387000 is an abundant number, since it is smaller than the sum of its proper divisors (41368476200).

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

28273387000 is a wasteful number, since it uses less digits than its factorization.

28273387000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488113 (or 1488099 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 28273387000 in words is "twenty-eight billion, two hundred seventy-three million, three hundred eighty-seven thousand".