111864922777 has 2 divisors, whose sum is σ = 111864922778. Its totient is φ = 111864922776.

The previous prime is 111864922723. The next prime is 111864922903. The reversal of 111864922777 is 777229468111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111548652121 + 316270656 = 333989^2 + 17784^2 .

It is a cyclic number.

It is not a de Polignac number, because 111864922777 - 2¹¹ = 111864920729 is a prime.

It is not a weakly prime, because it can be changed into another prime (111864922717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55932461388 + 55932461389.

It is an arithmetic number, because the mean of its divisors is an integer number (55932461389).

Almost surely, 2^111864922777 is an apocalyptic number.

It is an amenable number.

111864922777 is a deficient number, since it is larger than the sum of its proper divisors (1).

111864922777 is an equidigital number, since it uses as much as digits as its factorization.

111864922777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 55.

It can be divided in two parts, 111864 and 922777, that added together give a triangular number (1034641 = T₁₄₃₈).

The spelling of 111864922777 in words is "one hundred eleven billion, eight hundred sixty-four million, nine hundred twenty-two thousand, seven hundred seventy-seven".