726686928816 has 40 divisors (see below), whose sum is σ = 1976078493120. Its totient is φ = 229480082496.

The previous prime is 726686928791. The next prime is 726686928829. The reversal of 726686928816 is 618829686627.

726686928816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398402010 + ... + 398403833.

It is an arithmetic number, because the mean of its divisors is an integer number (49401962328).

Almost surely, 2^726686928816 is an apocalyptic number.

726686928816 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

726686928816 is an abundant number, since it is smaller than the sum of its proper divisors (1249391564304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726686928816 is a wasteful number, since it uses less digits than its factorization.

726686928816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796805873 (or 796805867 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 69.

The spelling of 726686928816 in words is "seven hundred twenty-six billion, six hundred eighty-six million, nine hundred twenty-eight thousand, eight hundred sixteen".