28008057504 has 96 divisors (see below), whose sum is σ = 84795258240. Its totient is φ = 7928865792.

The previous prime is 28008057487. The next prime is 28008057527. The reversal of 28008057504 is 40575080082.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117939 + ... + 264434.

It is an arithmetic number, because the mean of its divisors is an integer number (883283940).

Almost surely, 2^28008057504 is an apocalyptic number.

28008057504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28008057504 is an abundant number, since it is smaller than the sum of its proper divisors (56787200736).

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

28008057504 is a wasteful number, since it uses less digits than its factorization.

28008057504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382502 (or 382494 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 28008057504 in words is "twenty-eight billion, eight million, fifty-seven thousand, five hundred four".