2161852827 has 8 divisors (see below), whose sum is σ = 2884003920. Its totient is φ = 1440468480.

The previous prime is 2161852817. The next prime is 2161852829. The reversal of 2161852827 is 7282581612.

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

It is not a de Polignac number, because 2161852827 - 2²⁸ = 1893417371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2161852829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185074 + ... + 196407.

It is an arithmetic number, because the mean of its divisors is an integer number (360500490).

Almost surely, 2^2161852827 is an apocalyptic number.

2161852827 is a deficient number, since it is larger than the sum of its proper divisors (722151093).

2161852827 is a wasteful number, since it uses less digits than its factorization.

2161852827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383373.

The product of its digits is 107520, while the sum is 42.

The square root of 2161852827 is about 46495.7291264477. The cubic root of 2161852827 is about 1293.0303190129.

The spelling of 2161852827 in words is "two billion, one hundred sixty-one million, eight hundred fifty-two thousand, eight hundred twenty-seven".