721593327700960 has 384 divisors, whose sum is σ = 2094033796356096. Its totient is φ = 231221453168640.

The previous prime is 721593327700957. The next prime is 721593327700963. The reversal of 721593327700960 is 69007723395127.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (721593327700957) and next prime (721593327700963).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721593327700963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 263335674 + ... + 266061766.

It is an arithmetic number, because the mean of its divisors is an integer number (5453213011344).

Almost surely, 2^{721593327700960} 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 721593327700960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047016898178048).

721593327700960 is an abundant number, since it is smaller than the sum of its proper divisors (1372440468655136).

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

721593327700960 is a wasteful number, since it uses less digits than its factorization.

721593327700960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726658 (or 2726650 counting only the distinct ones).

The product of its (nonzero) digits is 30005640, while the sum is 61.

The spelling of 721593327700960 in words is "seven hundred twenty-one trillion, five hundred ninety-three billion, three hundred twenty-seven million, seven hundred thousand, nine hundred sixty".