28446993588 has 48 divisors (see below), whose sum is σ = 75687030720. Its totient is φ = 8238042624.

The previous prime is 28446993569. The next prime is 28446993643. The reversal of 28446993588 is 88539964482.

It is a super-2 number, since 2×28446993588² (a number of 22 digits) contains 22 as substring.

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, 5360658 + ... + 5365961.

It is an arithmetic number, because the mean of its divisors is an integer number (1576813140).

Almost surely, 2^28446993588 is an apocalyptic number.

It is an amenable number.

28446993588 is an abundant number, since it is smaller than the sum of its proper divisors (47240037132).

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

28446993588 is a wasteful number, since it uses less digits than its factorization.

28446993588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726656 (or 10726654 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 66.

The spelling of 28446993588 in words is "twenty-eight billion, four hundred forty-six million, nine hundred ninety-three thousand, five hundred eighty-eight".