28924934924 has 24 divisors (see below), whose sum is σ = 53311666800. Its totient is φ = 13693855680.

The previous prime is 28924934873. The next prime is 28924934939. The reversal of 28924934924 is 42943942982.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28924934924.

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 7 ways as a sum of consecutive naturals, for example, 39182 + ... + 243690.

It is an arithmetic number, because the mean of its divisors is an integer number (2221319450).

Almost surely, 2^28924934924 is an apocalyptic number.

It is an amenable number.

28924934924 is a deficient number, since it is larger than the sum of its proper divisors (24386731876).

28924934924 is a wasteful number, since it uses less digits than its factorization.

28924934924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206393 (or 206391 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 56.

The spelling of 28924934924 in words is "twenty-eight billion, nine hundred twenty-four million, nine hundred thirty-four thousand, nine hundred twenty-four".