2144763687 has 16 divisors (see below), whose sum is σ = 3122766720. Its totient is φ = 1298560800.

The previous prime is 2144763661. The next prime is 2144763703. The reversal of 2144763687 is 7863674412.

It is a happy number.

It is not a de Polignac number, because 2144763687 - 2⁶ = 2144763623 is a prime.

It is a super-2 number, since 2×2144763687² = 9200022546147667938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144768687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737 + ... + 65517.

It is an arithmetic number, because the mean of its divisors is an integer number (195172920).

Almost surely, 2^2144763687 is an apocalyptic number.

2144763687 is a deficient number, since it is larger than the sum of its proper divisors (978003033).

2144763687 is a wasteful number, since it uses less digits than its factorization.

2144763687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64814.

The product of its digits is 1354752, while the sum is 48.

The square root of 2144763687 is about 46311.5934405198. The cubic root of 2144763687 is about 1289.6142281362.

The spelling of 2144763687 in words is "two billion, one hundred forty-four million, seven hundred sixty-three thousand, six hundred eighty-seven".