28300543312 has 20 divisors (see below), whose sum is σ = 56601087616. Its totient is φ = 13693811040.

The previous prime is 28300543289. The next prime is 28300543357. The reversal of 28300543312 is 21334500382.

28300543312 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28528278 + ... + 28529269.

Almost surely, 2^28300543312 is an apocalyptic number.

It is an amenable number.

28300543312 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28300543312 is a wasteful number, since it uses less digits than its factorization.

28300543312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57057586 (or 57057580 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 28300543312 in words is "twenty-eight billion, three hundred million, five hundred forty-three thousand, three hundred twelve".