27982862886 has 64 divisors (see below), whose sum is σ = 64679959296. Its totient is φ = 7976524800.

The previous prime is 27982862837. The next prime is 27982862893. The reversal of 27982862886 is 68826828972.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2466106 + ... + 2477426.

It is an arithmetic number, because the mean of its divisors is an integer number (1010624364).

Almost surely, 2^27982862886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27982862886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32339979648).

27982862886 is an abundant number, since it is smaller than the sum of its proper divisors (36697096410).

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

27982862886 is a wasteful number, since it uses less digits than its factorization.

27982862886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13557.

The product of its digits is 74317824, while the sum is 66.

The spelling of 27982862886 in words is "twenty-seven billion, nine hundred eighty-two million, eight hundred sixty-two thousand, eight hundred eighty-six".