28802915504 has 90 divisors (see below), whose sum is σ = 61992290052. Its totient is φ = 12953740800.

The previous prime is 28802915503. The next prime is 28802915527. The reversal of 28802915504 is 40551920882.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (28802915501) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 85468424 + ... + 85468760.

Almost surely, 2^28802915504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28802915504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30996145026).

28802915504 is an abundant number, since it is smaller than the sum of its proper divisors (33189374548).

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

28802915504 is a wasteful number, since it uses less digits than its factorization.

28802915504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 28802915504 in words is "twenty-eight billion, eight hundred two million, nine hundred fifteen thousand, five hundred four".