749269942217 has 2 divisors, whose sum is σ = 749269942218. Its totient is φ = 749269942216.

The previous prime is 749269942193. The next prime is 749269942219. The reversal of 749269942217 is 712249962947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643261745296 + 106008196921 = 802036^2 + 325589^2 .

It is an emirp because it is prime and its reverse (712249962947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 749269942217 - 2²⁸ = 749001506761 is a prime.

It is a super-2 number, since 2×749269942217² (a number of 25 digits) contains 22 as substring.

Together with 749269942219, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 749269942217.

It is not a weakly prime, because it can be changed into another prime (749269942219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374634971108 + 374634971109.

It is an arithmetic number, because the mean of its divisors is an integer number (374634971109).

Almost surely, 2^749269942217 is an apocalyptic number.

It is an amenable number.

749269942217 is a deficient number, since it is larger than the sum of its proper divisors (1).

749269942217 is an equidigital number, since it uses as much as digits as its factorization.

749269942217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 62.

The spelling of 749269942217 in words is "seven hundred forty-nine billion, two hundred sixty-nine million, nine hundred forty-two thousand, two hundred seventeen".