28386606873984 has 512 divisors, whose sum is σ = 87140085120000. Its totient is φ = 8126951325696.

The previous prime is 28386606873959. The next prime is 28386606874007. The reversal of 28386606873984 is 48937860668382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1579042404 + ... + 1579060380.

It is an arithmetic number, because the mean of its divisors is an integer number (170195478750).

Almost surely, 2^{28386606873984} is an apocalyptic number.

28386606873984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28386606873984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43570042560000).

28386606873984 is an abundant number, since it is smaller than the sum of its proper divisors (58753478246016).

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

28386606873984 is a wasteful number, since it uses less digits than its factorization.

28386606873984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498 (or 18486 counting only the distinct ones).

The product of its (nonzero) digits is 4013162496, while the sum is 78.

The spelling of 28386606873984 in words is "twenty-eight trillion, three hundred eighty-six billion, six hundred six million, eight hundred seventy-three thousand, nine hundred eighty-four".