28745025384 has 32 divisors (see below), whose sum is σ = 72118319040. Its totient is φ = 9547574400.

The previous prime is 28745025371. The next prime is 28745025403. The reversal of 28745025384 is 48352054782.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124412 + ... + 2137899.

It is an arithmetic number, because the mean of its divisors is an integer number (2253697470).

Almost surely, 2^28745025384 is an apocalyptic number.

28745025384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28745025384 is an abundant number, since it is smaller than the sum of its proper divisors (43373293656).

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

28745025384 is a wasteful number, since it uses less digits than its factorization.

28745025384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262601 (or 4262597 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 28745025384 in words is "twenty-eight billion, seven hundred forty-five million, twenty-five thousand, three hundred eighty-four".