2161744327 has 8 divisors (see below), whose sum is σ = 2311130016. Its totient is φ = 2014828032.

The previous prime is 2161744307. The next prime is 2161744349. The reversal of 2161744327 is 7234471612.

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

It is not a de Polignac number, because 2161744327 - 2³¹ = 14260679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161744307) 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, 615538 + ... + 619039.

It is an arithmetic number, because the mean of its divisors is an integer number (288891252).

Almost surely, 2^2161744327 is an apocalyptic number.

2161744327 is a deficient number, since it is larger than the sum of its proper divisors (149385689).

2161744327 is a wasteful number, since it uses less digits than its factorization.

2161744327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234697.

The product of its digits is 56448, while the sum is 37.

The square root of 2161744327 is about 46494.5623379767. The cubic root of 2161744327 is about 1293.0086869303.

The spelling of 2161744327 in words is "two billion, one hundred sixty-one million, seven hundred forty-four thousand, three hundred twenty-seven".