10809408906 has 16 divisors (see below), whose sum is σ = 24020908800. Its totient is φ = 3603136284.

The previous prime is 10809408899. The next prime is 10809408913. The reversal of 10809408906 is 60980490801.

It is an interprime number because it is at equal distance from previous prime (10809408899) and next prime (10809408913).

It is a super-2 number, since 2×10809408906² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100087066 + ... + 100087173.

It is an arithmetic number, because the mean of its divisors is an integer number (1501306800).

Almost surely, 2^10809408906 is an apocalyptic number.

10809408906 is an abundant number, since it is smaller than the sum of its proper divisors (13211499894).

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

10809408906 is a wasteful number, since it uses less digits than its factorization.

10809408906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200174250 (or 200174244 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 10809408906 in words is "ten billion, eight hundred nine million, four hundred eight thousand, nine hundred six".