111864922845 has 32 divisors (see below), whose sum is σ = 193579206912. Its totient is φ = 54835579392.

The previous prime is 111864922777. The next prime is 111864922903. The reversal of 111864922845 is 548229468111.

It is a happy number.

It is not a de Polignac number, because 111864922845 - 2⁷ = 111864922717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1185609 + ... + 1276478.

It is an arithmetic number, because the mean of its divisors is an integer number (6049350216).

Almost surely, 2^111864922845 is an apocalyptic number.

111864922845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111864922845 is a deficient number, since it is larger than the sum of its proper divisors (81714284067).

111864922845 is a wasteful number, since it uses less digits than its factorization.

111864922845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462341.

The product of its digits is 1105920, while the sum is 51.

The spelling of 111864922845 in words is "one hundred eleven billion, eight hundred sixty-four million, nine hundred twenty-two thousand, eight hundred forty-five".