722742631845 has 32 divisors (see below), whose sum is σ = 1247026569600. Its totient is φ = 355330209024.

The previous prime is 722742631817. The next prime is 722742631859. The reversal of 722742631845 is 548136247227.

It is not a de Polignac number, because 722742631845 - 2⁵ = 722742631813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2363590 + ... + 2651799.

It is an arithmetic number, because the mean of its divisors is an integer number (38969580300).

Almost surely, 2^722742631845 is an apocalyptic number.

It is an amenable number.

722742631845 is a deficient number, since it is larger than the sum of its proper divisors (524283937755).

722742631845 is a wasteful number, since it uses less digits than its factorization.

722742631845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016149.

The product of its digits is 4515840, while the sum is 51.

The spelling of 722742631845 in words is "seven hundred twenty-two billion, seven hundred forty-two million, six hundred thirty-one thousand, eight hundred forty-five".