2144764287 has 12 divisors (see below), whose sum is σ = 3118511344. Its totient is φ = 1420372800.

The previous prime is 2144764273. The next prime is 2144764291. The reversal of 2144764287 is 7824674412.

2144764287 is a `hidden beast` number, since 214 + 4 + 7 + 6 + 428 + 7 = 666.

It is not a de Polignac number, because 2144764287 - 2¹⁴ = 2144747903 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 (2144764267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787738 + ... + 790455.

Almost surely, 2^2144764287 is an apocalyptic number.

2144764287 is a deficient number, since it is larger than the sum of its proper divisors (973747057).

2144764287 is a wasteful number, since it uses less digits than its factorization.

2144764287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578350 (or 1578347 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 2144764287 is about 46311.5999183790. The cubic root of 2144764287 is about 1289.6143483932.

The spelling of 2144764287 in words is "two billion, one hundred forty-four million, seven hundred sixty-four thousand, two hundred eighty-seven".