2663612317 has 2 divisors, whose sum is σ = 2663612318. Its totient is φ = 2663612316.

The previous prime is 2663612279. The next prime is 2663612321. The reversal of 2663612317 is 7132163662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2611107801 + 52504516 = 51099^2 + 7246^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663612317 - 2¹⁵ = 2663579549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2663612417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331806158 + 1331806159.

It is an arithmetic number, because the mean of its divisors is an integer number (1331806159).

Almost surely, 2^2663612317 is an apocalyptic number.

It is an amenable number.

2663612317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2663612317 is an equidigital number, since it uses as much as digits as its factorization.

2663612317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The square root of 2663612317 is about 51610.1958628332. The cubic root of 2663612317 is about 1386.1929044906.

Adding to 2663612317 its reverse (7132163662), we get a palindrome (9795775979).

The spelling of 2663612317 in words is "two billion, six hundred sixty-three million, six hundred twelve thousand, three hundred seventeen".