726300447020065 has 4 divisors (see below), whose sum is σ = 871560536424084. Its totient is φ = 581040357616048.

The previous prime is 726300447020063. The next prime is 726300447020107. The reversal of 726300447020065 is 560020744003627.

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

It can be written as a sum of positive squares in 2 ways, for example, as 307377756324864 + 418922690695201 = 17532192^2 + 20467601^2 .

It is a cyclic number.

It is not a de Polignac number, because 726300447020065 - 2¹ = 726300447020063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 726300447019997 and 726300447020024.

It is not an unprimeable number, because it can be changed into a prime (726300447020063) 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, 72630044702002 + ... + 72630044702011.

It is an arithmetic number, because the mean of its divisors is an integer number (217890134106021).

Almost surely, 2^{726300447020065} is an apocalyptic number.

It is an amenable number.

726300447020065 is a deficient number, since it is larger than the sum of its proper divisors (145260089404019).

726300447020065 is a wasteful number, since it uses less digits than its factorization.

726300447020065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145260089404018.

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 726300447020065 in words is "seven hundred twenty-six trillion, three hundred billion, four hundred forty-seven million, twenty thousand, sixty-five".