722642420000 has 90 divisors (see below), whose sum is σ = 1778104557999. Its totient is φ = 289008880000.

The previous prime is 722642419997. The next prime is 722642420011. The reversal of 722642420000 is 24246227.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 167074927504 + 555567492496 = 408748^2 + 745364^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=601100.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 120216995 + ... + 120223005.

Almost surely, 2^722642420000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722642420000

722642420000 is an abundant number, since it is smaller than the sum of its proper divisors (1055462137999).

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

722642420000 is an frugal number, since it uses more digits than its factorization.

722642420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12052 (or 6018 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

Adding to 722642420000 its reverse (24246227), we get a palindrome (722666666227).

The spelling of 722642420000 in words is "seven hundred twenty-two billion, six hundred forty-two million, four hundred twenty thousand".