10726180721 has 2 divisors, whose sum is σ = 10726180722. Its totient is φ = 10726180720.

The previous prime is 10726180667. The next prime is 10726180723. The reversal of 10726180721 is 12708162701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10493953600 + 232227121 = 102440^2 + 15239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10726180721 is a prime.

Together with 10726180723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10726180723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5363090360 + 5363090361.

It is an arithmetic number, because the mean of its divisors is an integer number (5363090361).

Almost surely, 2^10726180721 is an apocalyptic number.

It is an amenable number.

10726180721 is a deficient number, since it is larger than the sum of its proper divisors (1).

10726180721 is an equidigital number, since it uses as much as digits as its factorization.

10726180721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 10726180721 in words is "ten billion, seven hundred twenty-six million, one hundred eighty thousand, seven hundred twenty-one".