28544989284 has 72 divisors (see below), whose sum is σ = 83815204928. Its totient is φ = 8022006720.

The previous prime is 28544989271. The next prime is 28544989309. The reversal of 28544989284 is 48298944582.

28544989284 is a `hidden beast` number, since 2 + 8 + 54 + 498 + 92 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 913102 + ... + 943845.

Almost surely, 2^28544989284 is an apocalyptic number.

It is an amenable number.

28544989284 is an abundant number, since it is smaller than the sum of its proper divisors (55270215644).

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

28544989284 is a wasteful number, since it uses less digits than its factorization.

28544989284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857025 (or 1857020 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The spelling of 28544989284 in words is "twenty-eight billion, five hundred forty-four million, nine hundred eighty-nine thousand, two hundred eighty-four".