2663842117 has 2 divisors, whose sum is σ = 2663842118. Its totient is φ = 2663842116.

The previous prime is 2663842109. The next prime is 2663842127. The reversal of 2663842117 is 7112483662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1445064196 + 1218777921 = 38014^2 + 34911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663842117 - 2³ = 2663842109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2663842117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663842127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331921058 + 1331921059.

It is an arithmetic number, because the mean of its divisors is an integer number (1331921059).

Almost surely, 2^2663842117 is an apocalyptic number.

It is an amenable number.

2663842117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663842117 is an equidigital number, since it uses as much as digits as its factorization.

2663842117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 2663842117 is about 51612.4221190984. The cubic root of 2663842117 is about 1386.2327673950.

The spelling of 2663842117 in words is "two billion, six hundred sixty-three million, eight hundred forty-two thousand, one hundred seventeen".