9901700000 has 72 divisors (see below), whose sum is σ = 24366151404. Its totient is φ = 3960640000.

The previous prime is 9901699979. The next prime is 9901700009. The reversal of 9901700000 is 71099.

It can be written as a sum of positive squares in 6 ways, for example, as 4508853904 + 5392846096 = 67148^2 + 73436^2 .

It is not an unprimeable number, because it can be changed into a prime (9901700009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50492 + ... + 149508.

Almost surely, 2^9901700000 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 9901700000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12183075702).

9901700000 is an abundant number, since it is smaller than the sum of its proper divisors (14464451404).

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

9901700000 is an frugal number, since it uses more digits than its factorization.

9901700000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99052 (or 99024 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 9901700000 is about 99507.2861653859. The cubic root of 9901700000 is about 2147.3520673579.

Adding to 9901700000 its reverse (71099), we get a palindrome (9901771099).

The spelling of 9901700000 in words is "nine billion, nine hundred one million, seven hundred thousand".