10001901009 has 16 divisors (see below), whose sum is σ = 13372082240. Its totient is φ = 6649853760.

The previous prime is 10001900999. The next prime is 10001901043. The reversal of 10001901009 is 90010910001.

It is not a de Polignac number, because 10001901009 - 2¹¹ = 10001898961 is a prime.

It is a super-3 number, since 3×10001901009³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001901059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1974522 + ... + 1979580.

It is an arithmetic number, because the mean of its divisors is an integer number (835755140).

Almost surely, 2^10001901009 is an apocalyptic number.

It is an amenable number.

10001901009 is a deficient number, since it is larger than the sum of its proper divisors (3370181231).

10001901009 is an equidigital number, since it uses as much as digits as its factorization.

10001901009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 81, while the sum is 21.

The spelling of 10001901009 in words is "ten billion, one million, nine hundred one thousand, nine".