10009999999 has 8 divisors (see below), whose sum is σ = 10028966400. Its totient is φ = 9991052376.

The previous prime is 10009999997. The next prime is 10010000029. The reversal of 10009999999 is 99999990001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10009999999 - 2¹ = 10009999997 is a prime.

It is a Duffinian number.

10009999999 is a modest number, since divided by 999999 gives 10009 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 10009999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10009999991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462824 + ... + 1469650.

It is an arithmetic number, because the mean of its divisors is an integer number (1253620800).

Almost surely, 2^10009999999 is an apocalyptic number.

10009999999 is a deficient number, since it is larger than the sum of its proper divisors (18966401).

10009999999 is an equidigital number, since it uses as much as digits as its factorization.

10009999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9389.

The product of its (nonzero) digits is 4782969, while the sum is 64.

The spelling of 10009999999 in words is "ten billion, nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".