28974989284 has 24 divisors (see below), whose sum is σ = 53391340800. Its totient is φ = 13720788000.

The previous prime is 28974989279. The next prime is 28974989287. The reversal of 28974989284 is 48298947982.

It is not an unprimeable number, because it can be changed into a prime (28974989287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198534 + ... + 312034.

It is an arithmetic number, because the mean of its divisors is an integer number (2224639200).

Almost surely, 2^28974989284 is an apocalyptic number.

It is an amenable number.

28974989284 is a deficient number, since it is larger than the sum of its proper divisors (24416351516).

28974989284 is a wasteful number, since it uses less digits than its factorization.

28974989284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116883 (or 116881 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 70.

The spelling of 28974989284 in words is "twenty-eight billion, nine hundred seventy-four million, nine hundred eighty-nine thousand, two hundred eighty-four".