720690912000 has 288 divisors, whose sum is σ = 2659753037760. Its totient is φ = 192184012800.

The previous prime is 720690911999. The next prime is 720690912041. The reversal of 720690912000 is 219096027.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446934 + ... + 1281066.

Almost surely, 2^720690912000 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 720690912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329876518880).

720690912000 is an abundant number, since it is smaller than the sum of its proper divisors (1939062125760).

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

720690912000 is an equidigital number, since it uses as much as digits as its factorization.

720690912000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834173 (or 834143 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 720690912000 in words is "seven hundred twenty billion, six hundred ninety million, nine hundred twelve thousand".