10809458887 has 4 divisors (see below), whose sum is σ = 10865466640. Its totient is φ = 10753451136.

The previous prime is 10809458873. The next prime is 10809458897. The reversal of 10809458887 is 78885490801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10809458887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10809458897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28003587 + ... + 28003972.

It is an arithmetic number, because the mean of its divisors is an integer number (2716366660).

Almost surely, 2^10809458887 is an apocalyptic number.

10809458887 is a deficient number, since it is larger than the sum of its proper divisors (56007753).

10809458887 is an equidigital number, since it uses as much as digits as its factorization.

10809458887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56007752.

The product of its (nonzero) digits is 5160960, while the sum is 58.

The spelling of 10809458887 in words is "ten billion, eight hundred nine million, four hundred fifty-eight thousand, eight hundred eighty-seven".