2163648879 has 12 divisors (see below), whose sum is σ = 3571737936. Its totient is φ = 1236370752.

The previous prime is 2163648869. The next prime is 2163648881. The reversal of 2163648879 is 9788463612.

It is not a de Polignac number, because 2163648879 - 2⁴ = 2163648863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163648869) 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 11 ways as a sum of consecutive naturals, for example, 17171754 + ... + 17171879.

It is an arithmetic number, because the mean of its divisors is an integer number (297644828).

Almost surely, 2^2163648879 is an apocalyptic number.

2163648879 is a deficient number, since it is larger than the sum of its proper divisors (1408089057).

2163648879 is a wasteful number, since it uses less digits than its factorization.

2163648879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34343646 (or 34343643 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 2163648879 is about 46515.0392776358. The cubic root of 2163648879 is about 1293.3883000354.

The spelling of 2163648879 in words is "two billion, one hundred sixty-three million, six hundred forty-eight thousand, eight hundred seventy-nine".