722323768320 has 2112 divisors, whose sum is σ = 3345420288000. Its totient is φ = 144521625600.

The previous prime is 722323768301. The next prime is 722323768393. The reversal of 722323768320 is 23867323227.

722323768320 is a `hidden beast` number, since 7 + 2 + 232 + 37 + 68 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (2112).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3629767581 + ... + 3629767779.

Almost surely, 2^722323768320 is an apocalyptic number.

722323768320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722323768320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672710144000).

722323768320 is an abundant number, since it is smaller than the sum of its proper divisors (2623096519680).

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

722323768320 is a wasteful number, since it uses less digits than its factorization.

722323768320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 45.

The spelling of 722323768320 in words is "seven hundred twenty-two billion, three hundred twenty-three million, seven hundred sixty-eight thousand, three hundred twenty".