28810356568 has 64 divisors (see below), whose sum is σ = 62079621120. Its totient is φ = 12278822400.

The previous prime is 28810356551. The next prime is 28810356581. The reversal of 28810356568 is 86565301882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15802905 + ... + 15804727.

It is an arithmetic number, because the mean of its divisors is an integer number (969994080).

Almost surely, 2^28810356568 is an apocalyptic number.

28810356568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28810356568 is an abundant number, since it is smaller than the sum of its proper divisors (33269264552).

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

28810356568 is a wasteful number, since it uses less digits than its factorization.

28810356568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248 (or 3244 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 28810356568 in words is "twenty-eight billion, eight hundred ten million, three hundred fifty-six thousand, five hundred sixty-eight".