726807255563 has 2 divisors, whose sum is σ = 726807255564. Its totient is φ = 726807255562.

The previous prime is 726807255547. The next prime is 726807255613. The reversal of 726807255563 is 365552708627.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (365552708627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726807255563 - 2⁴ = 726807255547 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 726807255499 and 726807255508.

It is not a weakly prime, because it can be changed into another prime (726807555563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363403627781 + 363403627782.

It is an arithmetic number, because the mean of its divisors is an integer number (363403627782).

Almost surely, 2^726807255563 is an apocalyptic number.

726807255563 is a deficient number, since it is larger than the sum of its proper divisors (1).

726807255563 is an equidigital number, since it uses as much as digits as its factorization.

726807255563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 726807255563 in words is "seven hundred twenty-six billion, eight hundred seven million, two hundred fifty-five thousand, five hundred sixty-three".