2171827428883 has 4 divisors (see below), whose sum is σ = 2482088490160. Its totient is φ = 1861566367608.

The previous prime is 2171827428871. The next prime is 2171827428917. The reversal of 2171827428883 is 3888247281712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2171827428883 - 2²⁵ = 2171793874451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2171827428283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155130530628 + ... + 155130530641.

It is an arithmetic number, because the mean of its divisors is an integer number (620522122540).

Almost surely, 2^{2171827428883} is an apocalyptic number.

2171827428883 is a deficient number, since it is larger than the sum of its proper divisors (310261061277).

2171827428883 is an equidigital number, since it uses as much as digits as its factorization.

2171827428883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310261061276.

The product of its digits is 19267584, while the sum is 61.

The spelling of 2171827428883 in words is "two trillion, one hundred seventy-one billion, eight hundred twenty-seven million, four hundred twenty-eight thousand, eight hundred eighty-three".