720591428235900 has 288 divisors, whose sum is σ = 2377410715975680. Its totient is φ = 166939224698880.

The previous prime is 720591428235869. The next prime is 720591428235901. The reversal of 720591428235900 is 9532824195027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720591428235901) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6161001621 + ... + 6161118579.

It is an arithmetic number, because the mean of its divisors is an integer number (8254898319360).

Almost surely, 2^{720591428235900} 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 720591428235900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188705357987840).

720591428235900 is an abundant number, since it is smaller than the sum of its proper divisors (1656819287739780).

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

720591428235900 is a wasteful number, since it uses less digits than its factorization.

720591428235900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209933 (or 209926 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 720591428235900 in words is "seven hundred twenty trillion, five hundred ninety-one billion, four hundred twenty-eight million, two hundred thirty-five thousand, nine hundred".