2144718686 has 16 divisors (see below), whose sum is σ = 3511254528. Its totient is φ = 974395800.

The previous prime is 2144718659. The next prime is 2144718721. The reversal of 2144718686 is 6868174412.

It is a self number, because there is not a number n which added to its sum of digits gives 2144718686.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24401 + ... + 69891.

It is an arithmetic number, because the mean of its divisors is an integer number (219453408).

Almost surely, 2^2144718686 is an apocalyptic number.

2144718686 is a deficient number, since it is larger than the sum of its proper divisors (1366535842).

2144718686 is a wasteful number, since it uses less digits than its factorization.

2144718686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47647.

The product of its digits is 516096, while the sum is 47.

The square root of 2144718686 is about 46311.1075877051. The cubic root of 2144718686 is about 1289.6052085977.

The spelling of 2144718686 in words is "two billion, one hundred forty-four million, seven hundred eighteen thousand, six hundred eighty-six".