2163731079 has 16 divisors (see below), whose sum is σ = 2930270720. Its totient is φ = 1419949440.

The previous prime is 2163731071. The next prime is 2163731081. The reversal of 2163731079 is 9701373612.

It is a happy number.

It is not a de Polignac number, because 2163731079 - 2³ = 2163731071 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 (2163731071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66324 + ... + 93414.

It is an arithmetic number, because the mean of its divisors is an integer number (183141920).

Almost surely, 2^2163731079 is an apocalyptic number.

2163731079 is a deficient number, since it is larger than the sum of its proper divisors (766539641).

2163731079 is a wasteful number, since it uses less digits than its factorization.

2163731079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27510.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 2163731079 is about 46515.9228544377. The cubic root of 2163731079 is about 1293.4046790288.

The spelling of 2163731079 in words is "two billion, one hundred sixty-three million, seven hundred thirty-one thousand, seventy-nine".