726254347799 has 4 divisors (see below), whose sum is σ = 726257119536. Its totient is φ = 726251576064.

The previous prime is 726254347723. The next prime is 726254347811. The reversal of 726254347799 is 997743452627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726254347799 is a prime.

It is a super-2 number, since 2×726254347799² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726254347199) 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 3 ways as a sum of consecutive naturals, for example, 946379 + ... + 1532364.

It is an arithmetic number, because the mean of its divisors is an integer number (181564279884).

Almost surely, 2^726254347799 is an apocalyptic number.

726254347799 is a deficient number, since it is larger than the sum of its proper divisors (2771737).

726254347799 is a wasteful number, since it uses less digits than its factorization.

726254347799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771736.

The product of its digits is 160030080, while the sum is 65.

The spelling of 726254347799 in words is "seven hundred twenty-six billion, two hundred fifty-four million, three hundred forty-seven thousand, seven hundred ninety-nine".