722077285688 has 128 divisors (see below), whose sum is σ = 1545012817920. Its totient is φ = 313451698560.

The previous prime is 722077285679. The next prime is 722077285771. The reversal of 722077285688 is 886582770227.

722077285688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 722077285688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356228531 + ... + 356230557.

It is an arithmetic number, because the mean of its divisors is an integer number (12070412640).

Almost surely, 2^722077285688 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 722077285688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772506408960).

722077285688 is an abundant number, since it is smaller than the sum of its proper divisors (822935532232).

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

722077285688 is a wasteful number, since it uses less digits than its factorization.

722077285688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137 (or 4133 counting only the distinct ones).

The product of its (nonzero) digits is 42147840, while the sum is 62.

The spelling of 722077285688 in words is "seven hundred twenty-two billion, seventy-seven million, two hundred eighty-five thousand, six hundred eighty-eight".