726151189321 has 2 divisors, whose sum is σ = 726151189322. Its totient is φ = 726151189320.

The previous prime is 726151189273. The next prime is 726151189367. The reversal of 726151189321 is 123981151627.

It is an a-pointer prime, because the next prime (726151189367) can be obtained adding 726151189321 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452061246025 + 274089943296 = 672355^2 + 523536^2 .

It is a cyclic number.

It is not a de Polignac number, because 726151189321 - 2⁹ = 726151188809 is a prime.

It is not a weakly prime, because it can be changed into another prime (726151139321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363075594660 + 363075594661.

It is an arithmetic number, because the mean of its divisors is an integer number (363075594661).

Almost surely, 2^726151189321 is an apocalyptic number.

It is an amenable number.

726151189321 is a deficient number, since it is larger than the sum of its proper divisors (1).

726151189321 is an equidigital number, since it uses as much as digits as its factorization.

726151189321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 46.

The spelling of 726151189321 in words is "seven hundred twenty-six billion, one hundred fifty-one million, one hundred eighty-nine thousand, three hundred twenty-one".