28642846684884 has 12 divisors (see below), whose sum is σ = 66833308931424. Its totient is φ = 9547615561624.

The previous prime is 28642846684841. The next prime is 28642846684891. The reversal of 28642846684884 is 48848664824682.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193451945192 + ... + 1193451945215.

It is an arithmetic number, because the mean of its divisors is an integer number (5569442410952).

Almost surely, 2^{28642846684884} is an apocalyptic number.

It is an amenable number.

28642846684884 is an abundant number, since it is smaller than the sum of its proper divisors (38190462246540).

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

28642846684884 is a wasteful number, since it uses less digits than its factorization.

28642846684884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386903890414 (or 2386903890412 counting only the distinct ones).

The product of its digits is 7247757312, while the sum is 78.

The spelling of 28642846684884 in words is "twenty-eight trillion, six hundred forty-two billion, eight hundred forty-six million, six hundred eighty-four thousand, eight hundred eighty-four".