721098606800 has 480 divisors, whose sum is σ = 2124681511680. Its totient is φ = 231572275200.

The previous prime is 721098606757. The next prime is 721098606931. The reversal of 721098606800 is 8606890127.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 187442477 + ... + 187446323.

It is an arithmetic number, because the mean of its divisors is an integer number (4426419816).

Almost surely, 2^721098606800 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 721098606800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062340755840).

721098606800 is an abundant number, since it is smaller than the sum of its proper divisors (1403582904880).

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

721098606800 is a wasteful number, since it uses less digits than its factorization.

721098606800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 721098606800 in words is "seven hundred twenty-one billion, ninety-eight million, six hundred six thousand, eight hundred".