726161160269 has 2 divisors, whose sum is σ = 726161160270. Its totient is φ = 726161160268.

The previous prime is 726161160149. The next prime is 726161160271. The reversal of 726161160269 is 962061161627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713898255625 + 12262904644 = 844925^2 + 110738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726161160269 is a prime.

It is a super-2 number, since 2×726161160269² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 726161160271, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726161162269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363080580134 + 363080580135.

It is an arithmetic number, because the mean of its divisors is an integer number (363080580135).

Almost surely, 2^726161160269 is an apocalyptic number.

It is an amenable number.

726161160269 is a deficient number, since it is larger than the sum of its proper divisors (1).

726161160269 is an equidigital number, since it uses as much as digits as its factorization.

726161160269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 726161160269 in words is "seven hundred twenty-six billion, one hundred sixty-one million, one hundred sixty thousand, two hundred sixty-nine".