2171827428882 has 8 divisors (see below), whose sum is σ = 4343654857776. Its totient is φ = 723942476292.

The previous prime is 2171827428871. The next prime is 2171827428917. The reversal of 2171827428882 is 2888247281712.

It is a sphenic number, since it is the product of 3 distinct primes.

2171827428882 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 180985619068 + ... + 180985619079.

It is an arithmetic number, because the mean of its divisors is an integer number (542956857222).

Almost surely, 2^{2171827428882} is an apocalyptic number.

2171827428882 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2171827428882 is a wasteful number, since it uses less digits than its factorization.

2171827428882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361971238152.

The product of its digits is 12845056, while the sum is 60.

The spelling of 2171827428882 in words is "two trillion, one hundred seventy-one billion, eight hundred twenty-seven million, four hundred twenty-eight thousand, eight hundred eighty-two".