726209215087 has 2 divisors, whose sum is σ = 726209215088. Its totient is φ = 726209215086.

The previous prime is 726209215063. The next prime is 726209215093. The reversal of 726209215087 is 780512902627.

It is a strong prime.

It is an emirp because it is prime and its reverse (780512902627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726209215087 - 2⁷ = 726209214959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726209215087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726209215097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363104607543 + 363104607544.

It is an arithmetic number, because the mean of its divisors is an integer number (363104607544).

Almost surely, 2^726209215087 is an apocalyptic number.

726209215087 is a deficient number, since it is larger than the sum of its proper divisors (1).

726209215087 is an equidigital number, since it uses as much as digits as its factorization.

726209215087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 726209215087 in words is "seven hundred twenty-six billion, two hundred nine million, two hundred fifteen thousand, eighty-seven".