720823472880 has 640 divisors, whose sum is σ = 2782107648000. Its totient is φ = 153865958400.

The previous prime is 720823472849. The next prime is 720823472909. The reversal of 720823472880 is 88274328027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 111046435 + ... + 111052925.

It is an arithmetic number, because the mean of its divisors is an integer number (4347043200).

Almost surely, 2^720823472880 is an apocalyptic number.

720823472880 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 720823472880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391053824000).

720823472880 is an abundant number, since it is smaller than the sum of its proper divisors (2061284175120).

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

720823472880 is a wasteful number, since it uses less digits than its factorization.

720823472880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 51.

The spelling of 720823472880 in words is "seven hundred twenty billion, eight hundred twenty-three million, four hundred seventy-two thousand, eight hundred eighty".