10809438928 has 10 divisors (see below), whose sum is σ = 20943287954. Its totient is φ = 5404719456.

The previous prime is 10809438923. The next prime is 10809438929. The reversal of 10809438928 is 82983490801.

It can be written as a sum of positive squares in only one way, i.e., 10698178624 + 111260304 = 103432^2 + 10548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10809438923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337794951 + ... + 337794982.

Almost surely, 2^10809438928 is an apocalyptic number.

It is an amenable number.

10809438928 is a deficient number, since it is larger than the sum of its proper divisors (10133849026).

10809438928 is an equidigital number, since it uses as much as digits as its factorization.

10809438928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675589941 (or 675589935 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 10809438928 in words is "ten billion, eight hundred nine million, four hundred thirty-eight thousand, nine hundred twenty-eight".