726335406763 has 4 divisors (see below), whose sum is σ = 729015611488. Its totient is φ = 723655202040.

The previous prime is 726335406749. The next prime is 726335406779. The reversal of 726335406763 is 367604533627.

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-726335406763 is a prime.

It is a super-2 number, since 2×726335406763² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726335406763.

It is not an unprimeable number, because it can be changed into a prime (726335406743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340101956 + ... + 1340102497.

It is an arithmetic number, because the mean of its divisors is an integer number (182253902872).

Almost surely, 2^726335406763 is an apocalyptic number.

726335406763 is a deficient number, since it is larger than the sum of its proper divisors (2680204725).

726335406763 is a wasteful number, since it uses less digits than its factorization.

726335406763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680204724.

The product of its (nonzero) digits is 11430720, while the sum is 52.

The spelling of 726335406763 in words is "seven hundred twenty-six billion, three hundred thirty-five million, four hundred six thousand, seven hundred sixty-three".