28724455914 has 48 divisors (see below), whose sum is σ = 72903636576. Its totient is φ = 7460896800.

The previous prime is 28724455883. The next prime is 28724455961. The reversal of 28724455914 is 41955442782.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 4437777 + ... + 4444244.

It is an arithmetic number, because the mean of its divisors is an integer number (1518825762).

Almost surely, 2^28724455914 is an apocalyptic number.

28724455914 is an abundant number, since it is smaller than the sum of its proper divisors (44179180662).

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

28724455914 is a wasteful number, since it uses less digits than its factorization.

28724455914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882051 (or 8882044 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 51.

The spelling of 28724455914 in words is "twenty-eight billion, seven hundred twenty-four million, four hundred fifty-five thousand, nine hundred fourteen".