28927897896 has 16 divisors (see below), whose sum is σ = 72319744800. Its totient is φ = 9642632624.

The previous prime is 28927897877. The next prime is 28927897897. The reversal of 28927897896 is 69879872982.

It is not an unprimeable number, because it can be changed into a prime (28927897897) 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 3 ways as a sum of consecutive naturals, for example, 602664516 + ... + 602664563.

It is an arithmetic number, because the mean of its divisors is an integer number (4519984050).

Almost surely, 2^28927897896 is an apocalyptic number.

It is an amenable number.

28927897896 is an abundant number, since it is smaller than the sum of its proper divisors (43391846904).

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

28927897896 is a wasteful number, since it uses less digits than its factorization.

28927897896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205329088 (or 1205329084 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 75.

The spelling of 28927897896 in words is "twenty-eight billion, nine hundred twenty-seven million, eight hundred ninety-seven thousand, eight hundred ninety-six".