28915377424 has 20 divisors (see below), whose sum is σ = 56048634880. Its totient is φ = 14451213600.

The previous prime is 28915377371. The next prime is 28915377431. The reversal of 28915377424 is 42477351982.

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 3 ways as a sum of consecutive naturals, for example, 367752 + ... + 439399.

It is an arithmetic number, because the mean of its divisors is an integer number (2802431744).

Almost surely, 2^28915377424 is an apocalyptic number.

It is an amenable number.

28915377424 is a deficient number, since it is larger than the sum of its proper divisors (27133257456).

28915377424 is a wasteful number, since it uses less digits than its factorization.

28915377424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809398 (or 809392 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The spelling of 28915377424 in words is "twenty-eight billion, nine hundred fifteen million, three hundred seventy-seven thousand, four hundred twenty-four".