28310840268 has 24 divisors (see below), whose sum is σ = 66083657472. Its totient is φ = 9433371024.

The previous prime is 28310840267. The next prime is 28310840279. The reversal of 28310840268 is 86204801382.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28310840267) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 413880 + ... + 477407.

It is an arithmetic number, because the mean of its divisors is an integer number (2753485728).

Almost surely, 2^28310840268 is an apocalyptic number.

It is an amenable number.

28310840268 is an abundant number, since it is smaller than the sum of its proper divisors (37772817204).

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

28310840268 is a wasteful number, since it uses less digits than its factorization.

28310840268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893941 (or 893939 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 28310840268 in words is "twenty-eight billion, three hundred ten million, eight hundred forty thousand, two hundred sixty-eight".