726454153321 has 8 divisors (see below), whose sum is σ = 789258564360. Its totient is φ = 664638788352.

The previous prime is 726454153307. The next prime is 726454153333. The reversal of 726454153321 is 123351454627.

It can be written as a sum of positive squares in 4 ways, for example, as 69440155225 + 657013998096 = 263515^2 + 810564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726454153321 - 2¹¹ = 726454151273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726454153021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247259986 + ... + 247262923.

It is an arithmetic number, because the mean of its divisors is an integer number (98657320545).

Almost surely, 2^726454153321 is an apocalyptic number.

It is an amenable number.

726454153321 is a deficient number, since it is larger than the sum of its proper divisors (62804411039).

726454153321 is a wasteful number, since it uses less digits than its factorization.

726454153321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494523035.

The product of its digits is 604800, while the sum is 43.

The spelling of 726454153321 in words is "seven hundred twenty-six billion, four hundred fifty-four million, one hundred fifty-three thousand, three hundred twenty-one".