28844985924 has 48 divisors (see below), whose sum is σ = 74831702400. Its totient is φ = 9608771808.

The previous prime is 28844985899. The next prime is 28844985973. The reversal of 28844985924 is 42958944882.

28844985924 is a `hidden beast` number, since 28 + 8 + 449 + 85 + 92 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82714 + ... + 254030.

It is an arithmetic number, because the mean of its divisors is an integer number (1558993800).

Almost surely, 2^28844985924 is an apocalyptic number.

It is an amenable number.

28844985924 is an abundant number, since it is smaller than the sum of its proper divisors (45986716476).

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

28844985924 is a wasteful number, since it uses less digits than its factorization.

28844985924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172889 (or 172881 counting only the distinct ones).

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

The spelling of 28844985924 in words is "twenty-eight billion, eight hundred forty-four million, nine hundred eighty-five thousand, nine hundred twenty-four".