111783855678 has 24 divisors (see below), whose sum is σ = 245739717384. Its totient is φ = 33873895440.

The previous prime is 111783855661. The next prime is 111783855683. The reversal of 111783855678 is 876558387111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76985401 + ... + 76986852.

It is an arithmetic number, because the mean of its divisors is an integer number (10239154891).

Almost surely, 2^111783855678 is an apocalyptic number.

111783855678 is an abundant number, since it is smaller than the sum of its proper divisors (133955861706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111783855678 is a wasteful number, since it uses less digits than its factorization.

111783855678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153972280 (or 153972269 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 60.

The spelling of 111783855678 in words is "one hundred eleven billion, seven hundred eighty-three million, eight hundred fifty-five thousand, six hundred seventy-eight".