2163263721279 has 4 divisors (see below), whose sum is σ = 2884351628376. Its totient is φ = 1442175814184.

The previous prime is 2163263721271. The next prime is 2163263721299. The reversal of 2163263721279 is 9721273623612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2163263721279 - 2³ = 2163263721271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163263721271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360543953544 + ... + 360543953549.

It is an arithmetic number, because the mean of its divisors is an integer number (721087907094).

Almost surely, 2^{2163263721279} is an apocalyptic number.

2163263721279 is a deficient number, since it is larger than the sum of its proper divisors (721087907097).

2163263721279 is an equidigital number, since it uses as much as digits as its factorization.

2163263721279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721087907096.

The product of its digits is 2286144, while the sum is 51.

The spelling of 2163263721279 in words is "two trillion, one hundred sixty-three billion, two hundred sixty-three million, seven hundred twenty-one thousand, two hundred seventy-nine".