10809949723 has 16 divisors (see below), whose sum is σ = 11351793600. Its totient is φ = 10279682560.

The previous prime is 10809949691. The next prime is 10809949729. The reversal of 10809949723 is 32794990801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10809949723 - 2⁵ = 10809949691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10809949729) 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, 2652015 + ... + 2656087.

It is an arithmetic number, because the mean of its divisors is an integer number (709487100).

Almost surely, 2^10809949723 is an apocalyptic number.

10809949723 is a deficient number, since it is larger than the sum of its proper divisors (541843877).

10809949723 is a wasteful number, since it uses less digits than its factorization.

10809949723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 10809949723 in words is "ten billion, eight hundred nine million, nine hundred forty-nine thousand, seven hundred twenty-three".