111843863975 has 6 divisors (see below), whose sum is σ = 138686391360. Its totient is φ = 89475091160.

The previous prime is 111843863969. The next prime is 111843863977. The reversal of 111843863975 is 579368348111.

It is a happy number.

It is not a de Polignac number, because 111843863975 - 2⁴ = 111843863959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111843863975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111843863977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2236877255 + ... + 2236877304.

It is an arithmetic number, because the mean of its divisors is an integer number (23114398560).

Almost surely, 2^111843863975 is an apocalyptic number.

111843863975 is a deficient number, since it is larger than the sum of its proper divisors (26842527385).

111843863975 is an equidigital number, since it uses as much as digits as its factorization.

111843863975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473754569 (or 4473754564 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The spelling of 111843863975 in words is "one hundred eleven billion, eight hundred forty-three million, eight hundred sixty-three thousand, nine hundred seventy-five".