9725801800 has 96 divisors (see below), whose sum is σ = 26565799680. Its totient is φ = 3264595200.

The previous prime is 9725801773. The next prime is 9725801801. The reversal of 9725801800 is 81085279.

9725801800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (9725801801) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 141432 + ... + 198631.

It is an arithmetic number, because the mean of its divisors is an integer number (276727080).

Almost surely, 2^9725801800 is an apocalyptic number.

It is an amenable number.

9725801800 is an abundant number, since it is smaller than the sum of its proper divisors (16839997880).

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

9725801800 is a wasteful number, since it uses less digits than its factorization.

9725801800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340103 (or 340094 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 9725801800 is about 98619.4798201653. The cubic root of 9725801800 is about 2134.5605151844.

The spelling of 9725801800 in words is "nine billion, seven hundred twenty-five million, eight hundred one thousand, eight hundred".