720587386860 has 576 divisors, whose sum is σ = 2439214041600. Its totient is φ = 158225633280.

The previous prime is 720587386853. The next prime is 720587386867. The reversal of 720587386860 is 68683785027.

It is an interprime number because it is at equal distance from previous prime (720587386853) and next prime (720587386867).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 720587386794 and 720587386803.

It is not an unprimeable number, because it can be changed into a prime (720587386867) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 301121824 + ... + 301124216.

It is an arithmetic number, because the mean of its divisors is an integer number (4234746600).

Almost surely, 2^720587386860 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 720587386860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219607020800).

720587386860 is an abundant number, since it is smaller than the sum of its proper divisors (1718626654740).

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

720587386860 is a wasteful number, since it uses less digits than its factorization.

720587386860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 720587386860 in words is "seven hundred twenty billion, five hundred eighty-seven million, three hundred eighty-six thousand, eight hundred sixty".