111871673414 has 4 divisors (see below), whose sum is σ = 167807510124. Its totient is φ = 55935836706.

The previous prime is 111871673411. The next prime is 111871673453. The reversal of 111871673414 is 414376178111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414376178111 = 7 ⋅59196596873.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111871673411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27967918352 + ... + 27967918355.

It is an arithmetic number, because the mean of its divisors is an integer number (41951877531).

Almost surely, 2^111871673414 is an apocalyptic number.

111871673414 is a deficient number, since it is larger than the sum of its proper divisors (55935836710).

111871673414 is an equidigital number, since it uses as much as digits as its factorization.

111871673414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55935836709.

The product of its digits is 112896, while the sum is 44.

The spelling of 111871673414 in words is "one hundred eleven billion, eight hundred seventy-one million, six hundred seventy-three thousand, four hundred fourteen".