722558268449 has 8 divisors (see below), whose sum is σ = 725588291208. Its totient is φ = 719528509440.

The previous prime is 722558268427. The next prime is 722558268511. The reversal of 722558268449 is 944862855227.

It can be written as a sum of positive squares in 4 ways, for example, as 474489524224 + 248068744225 = 688832^2 + 498065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 722558268449 - 2²⁰ = 722557219873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722558268391 and 722558268400.

It is not an unprimeable number, because it can be changed into a prime (722558568449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7009409 + ... + 7111745.

It is an arithmetic number, because the mean of its divisors is an integer number (90698536401).

Almost surely, 2^722558268449 is an apocalyptic number.

It is an amenable number.

722558268449 is a deficient number, since it is larger than the sum of its proper divisors (3030022759).

722558268449 is a wasteful number, since it uses less digits than its factorization.

722558268449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131875.

The product of its digits is 77414400, while the sum is 62.

The spelling of 722558268449 in words is "seven hundred twenty-two billion, five hundred fifty-eight million, two hundred sixty-eight thousand, four hundred forty-nine".