726030331183981 has 2 divisors, whose sum is σ = 726030331183982. Its totient is φ = 726030331183980.

The previous prime is 726030331183943. The next prime is 726030331184003. The reversal of 726030331183981 is 189381133030627.

726030331183981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 633402603235081 + 92627727948900 = 25167491^2 + 9624330^2 .

It is a cyclic number.

It is not a de Polignac number, because 726030331183981 - 2²⁹ = 726029794313069 is a prime.

It is a super-2 number, since 2×726030331183981² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726030331183901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363015165591990 + 363015165591991.

It is an arithmetic number, because the mean of its divisors is an integer number (363015165591991).

Almost surely, 2^{726030331183981} is an apocalyptic number.

It is an amenable number.

726030331183981 is a deficient number, since it is larger than the sum of its proper divisors (1).

726030331183981 is an equidigital number, since it uses as much as digits as its factorization.

726030331183981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 726030331183981 in words is "seven hundred twenty-six trillion, thirty billion, three hundred thirty-one million, one hundred eighty-three thousand, nine hundred eighty-one".