2144171798 has 4 divisors (see below), whose sum is σ = 3216257700. Its totient is φ = 1072085898.

The previous prime is 2144171797. The next prime is 2144171929. The reversal of 2144171798 is 8971714412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144171797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536042948 + ... + 536042951.

It is an arithmetic number, because the mean of its divisors is an integer number (804064425).

Almost surely, 2^2144171798 is an apocalyptic number.

2144171798 is a deficient number, since it is larger than the sum of its proper divisors (1072085902).

2144171798 is a wasteful number, since it uses less digits than its factorization.

2144171798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072085901.

The product of its digits is 112896, while the sum is 44.

The square root of 2144171798 is about 46305.2027098468. The cubic root of 2144171798 is about 1289.4955858964.

It can be divided in two parts, 21441 and 71798, that added together give a palindrome (93239).

The spelling of 2144171798 in words is "two billion, one hundred forty-four million, one hundred seventy-one thousand, seven hundred ninety-eight".