9999700001 has 6 divisors (see below), whose sum is σ = 10035492006. Its totient is φ = 9964035200.

The previous prime is 9999699967. The next prime is 9999700037. The reversal of 9999700001 is 1000079999.

It can be written as a sum of positive squares in 3 ways, for example, as 1650309376 + 8349390625 = 40624^2 + 91375^2 .

It is not a de Polignac number, because 9999700001 - 2²² = 9995505697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999708001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15641 + ... + 142281.

It is an arithmetic number, because the mean of its divisors is an integer number (1672582001).

Almost surely, 2^9999700001 is an apocalyptic number.

It is an amenable number.

9999700001 is a deficient number, since it is larger than the sum of its proper divisors (35792005).

9999700001 is an equidigital number, since it uses as much as digits as its factorization.

9999700001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127203 (or 126922 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 9999700001 is about 99998.4999937499. The cubic root of 9999700001 is about 2154.4131455414.

The spelling of 9999700001 in words is "nine billion, nine hundred ninety-nine million, seven hundred thousand, one".