722708645760 has 320 divisors, whose sum is σ = 2732745399120. Its totient is φ = 181385478144.

The previous prime is 722708645731. The next prime is 722708645767. The reversal of 722708645760 is 67546807227.

722708645760 is a `hidden beast` number, since 7 + 2 + 2 + 7 + 0 + 8 + 64 + 576 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 722708645697 and 722708645706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722708645767) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 471247 + ... + 1291313.

Almost surely, 2^722708645760 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 722708645760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366372699560).

722708645760 is an abundant number, since it is smaller than the sum of its proper divisors (2010036753360).

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

722708645760 is a wasteful number, since it uses less digits than its factorization.

722708645760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820115 (or 820094 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 722708645760 in words is "seven hundred twenty-two billion, seven hundred eight million, six hundred forty-five thousand, seven hundred sixty".