726800120207201 has 4 divisors (see below), whose sum is σ = 726800291629572. Its totient is φ = 726799948784832.

The previous prime is 726800120207159. The next prime is 726800120207209. The reversal of 726800120207201 is 102702021008627.

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 282715135798225 + 444084984408976 = 16814135^2 + 21073324^2 .

It is a cyclic number.

It is not a de Polignac number, because 726800120207201 - 2¹⁴ = 726800120190817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726800120207209) 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, 79185860 + ... + 87886293.

It is an arithmetic number, because the mean of its divisors is an integer number (181700072907393).

Almost surely, 2^{726800120207201} is an apocalyptic number.

It is an amenable number.

726800120207201 is a deficient number, since it is larger than the sum of its proper divisors (171422371).

726800120207201 is a wasteful number, since it uses less digits than its factorization.

726800120207201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171422370.

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 726800120207201 in words is "seven hundred twenty-six trillion, eight hundred billion, one hundred twenty million, two hundred seven thousand, two hundred one".