724681118081 has 16 divisors (see below), whose sum is σ = 739352147328. Its totient is φ = 710136537600.

The previous prime is 724681118047. The next prime is 724681118093. The reversal of 724681118081 is 180811186427.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 724681118081 - 2¹⁰ = 724681117057 is a prime.

It is a super-2 number, since 2×724681118081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724681118041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57613265 + ... + 57625841.

It is an arithmetic number, because the mean of its divisors is an integer number (46209509208).

Almost surely, 2^724681118081 is an apocalyptic number.

724681118081 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

724681118081 is a deficient number, since it is larger than the sum of its proper divisors (14671029247).

724681118081 is a wasteful number, since it uses less digits than its factorization.

724681118081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17512.

The product of its (nonzero) digits is 172032, while the sum is 47.

The spelling of 724681118081 in words is "seven hundred twenty-four billion, six hundred eighty-one million, one hundred eighteen thousand, eighty-one".