720737051328 has 336 divisors, whose sum is σ = 2554892121600. Its totient is φ = 196970932224.

The previous prime is 720737051189. The next prime is 720737051357. The reversal of 720737051328 is 823150737027.

It is a happy number.

720737051328 is a `hidden beast` number, since 7 + 207 + 3 + 70 + 51 + 328 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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 47 ways as a sum of consecutive naturals, for example, 2359948 + ... + 2647796.

It is an arithmetic number, because the mean of its divisors is an integer number (7603845600).

Almost surely, 2^720737051328 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 720737051328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277446060800).

720737051328 is an abundant number, since it is smaller than the sum of its proper divisors (1834155070272).

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

720737051328 is a wasteful number, since it uses less digits than its factorization.

720737051328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287906 (or 287884 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 720737051328 in words is "seven hundred twenty billion, seven hundred thirty-seven million, fifty-one thousand, three hundred twenty-eight".