2468721217 has 2 divisors, whose sum is σ = 2468721218. Its totient is φ = 2468721216.

The previous prime is 2468721209. The next prime is 2468721263. The reversal of 2468721217 is 7121278642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2434040896 + 34680321 = 49336^2 + 5889^2 .

It is a cyclic number.

It is not a de Polignac number, because 2468721217 - 2³ = 2468721209 is a prime.

It is a super-2 number, since 2×2468721217² = 12189168894531922178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2468721217.

It is not a weakly prime, because it can be changed into another prime (2468721517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1234360608 + 1234360609.

It is an arithmetic number, because the mean of its divisors is an integer number (1234360609).

Almost surely, 2^2468721217 is an apocalyptic number.

It is an amenable number.

2468721217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2468721217 is an equidigital number, since it uses as much as digits as its factorization.

2468721217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 40.

The square root of 2468721217 is about 49686.2276390551. The cubic root of 2468721217 is about 1351.5247914494.

Adding to 2468721217 its reverse (7121278642), we get a palindrome (9589999859).

The spelling of 2468721217 in words is "two billion, four hundred sixty-eight million, seven hundred twenty-one thousand, two hundred seventeen".