2163739239 has 6 divisors (see below), whose sum is σ = 3125401136. Its totient is φ = 1442492820.

The previous prime is 2163739223. The next prime is 2163739267. The reversal of 2163739239 is 9329373612.

2163739239 is a `hidden beast` number, since 2 + 1 + 637 + 3 + 9 + 2 + 3 + 9 = 666.

It is not a de Polignac number, because 2163739239 - 2⁴ = 2163739223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2163739194 and 2163739203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163739939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120207727 + ... + 120207744.

Almost surely, 2^2163739239 is an apocalyptic number.

2163739239 is a deficient number, since it is larger than the sum of its proper divisors (961661897).

2163739239 is a wasteful number, since it uses less digits than its factorization.

2163739239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240415477 (or 240415474 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 2163739239 is about 46516.0105662556. The cubic root of 2163739239 is about 1293.4063049500.

The spelling of 2163739239 in words is "two billion, one hundred sixty-three million, seven hundred thirty-nine thousand, two hundred thirty-nine".