726051019 has 2 divisors, whose sum is σ = 726051020. Its totient is φ = 726051018.

The previous prime is 726051013. The next prime is 726051059. The reversal of 726051019 is 910150627.

726051019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (910150627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726051019 - 2¹³ = 726042827 is a prime.

It is a super-2 number, since 2×726051019² = 1054300164381876722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726051013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363025509 + 363025510.

It is an arithmetic number, because the mean of its divisors is an integer number (363025510).

Almost surely, 2^726051019 is an apocalyptic number.

726051019 is a deficient number, since it is larger than the sum of its proper divisors (1).

726051019 is an equidigital number, since it uses as much as digits as its factorization.

726051019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 726051019 is about 26945.3339003249. Note that the first 3 decimals coincide. The cubic root of 726051019 is about 898.7847874867.

The spelling of 726051019 in words is "seven hundred twenty-six million, fifty-one thousand, nineteen".