720684409410 has 576 divisors, whose sum is σ = 2366459971200. Its totient is φ = 151235610624.

The previous prime is 720684409387. The next prime is 720684409427. The reversal of 720684409410 is 14904486027.

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

It is a Curzon number.

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 287 ways as a sum of consecutive naturals, for example, 360882532 + ... + 360884528.

It is an arithmetic number, because the mean of its divisors is an integer number (4108437450).

Almost surely, 2^720684409410 is an apocalyptic number.

720684409410 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 720684409410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183229985600).

720684409410 is an abundant number, since it is smaller than the sum of its proper divisors (1645775561790).

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

720684409410 is a wasteful number, since it uses less digits than its factorization.

720684409410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175 (or 2165 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 720684409410 in words is "seven hundred twenty billion, six hundred eighty-four million, four hundred nine thousand, four hundred ten".