11773747843 has 24 divisors (see below), whose sum is σ = 13939153920. Its totient is φ = 9858008160.

The previous prime is 11773747813. The next prime is 11773747847. The reversal of 11773747843 is 34874737711.

It is not a de Polignac number, because 11773747843 - 2³³ = 3183813251 is a prime.

It is a super-2 number, since 2×11773747843² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11773747847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 853878 + ... + 867556.

It is an arithmetic number, because the mean of its divisors is an integer number (580798080).

Almost surely, 2^11773747843 is an apocalyptic number.

11773747843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11773747843 is a deficient number, since it is larger than the sum of its proper divisors (2165406077).

11773747843 is a wasteful number, since it uses less digits than its factorization.

11773747843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179 (or 14166 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 52.

The spelling of 11773747843 in words is "eleven billion, seven hundred seventy-three million, seven hundred forty-seven thousand, eight hundred forty-three".