726133443721261 has 8 divisors (see below), whose sum is σ = 729821362533120. Its totient is φ = 722445544730448.

The previous prime is 726133443721219. The next prime is 726133443721289. The reversal of 726133443721261 is 162127344331627.

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 726133443721261 - 2¹¹ = 726133443719213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 726133443721199 and 726133443721208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726133443721561) 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, 71486620 + ... + 81009898.

It is an arithmetic number, because the mean of its divisors is an integer number (91227670316640).

Almost surely, 2^{726133443721261} is an apocalyptic number.

It is an amenable number.

726133443721261 is a deficient number, since it is larger than the sum of its proper divisors (3687918811859).

726133443721261 is a wasteful number, since it uses less digits than its factorization.

726133443721261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9910523.

The product of its digits is 6096384, while the sum is 52.

The spelling of 726133443721261 in words is "seven hundred twenty-six trillion, one hundred thirty-three billion, four hundred forty-three million, seven hundred twenty-one thousand, two hundred sixty-one".