28867885244 has 18 divisors (see below), whose sum is σ = 55528928952. Its totient is φ = 13121765800.

The previous prime is 28867885237. The next prime is 28867885261. The reversal of 28867885244 is 44258876882.

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 5 ways as a sum of consecutive naturals, for example, 29821712 + ... + 29822679.

Almost surely, 2^28867885244 is an apocalyptic number.

It is an amenable number.

28867885244 is a deficient number, since it is larger than the sum of its proper divisors (26661043708).

28867885244 is a wasteful number, since it uses less digits than its factorization.

28867885244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59644417 (or 59644404 counting only the distinct ones).

The product of its digits is 55050240, while the sum is 62.

The spelling of 28867885244 in words is "twenty-eight billion, eight hundred sixty-seven million, eight hundred eighty-five thousand, two hundred forty-four".