118884851861 has 2 divisors, whose sum is σ = 118884851862. Its totient is φ = 118884851860.

The previous prime is 118884851831. The next prime is 118884851867. The reversal of 118884851861 is 168158488811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106459290961 + 12425560900 = 326281^2 + 111470^2 .

It is a cyclic number.

It is not a de Polignac number, because 118884851861 - 2³⁰ = 117811110037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118884851861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118884851867) by changing a digit.

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 as a sum of consecutive naturals, namely, 59442425930 + 59442425931.

It is an arithmetic number, because the mean of its divisors is an integer number (59442425931).

Almost surely, 2^118884851861 is an apocalyptic number.

It is an amenable number.

118884851861 is a deficient number, since it is larger than the sum of its proper divisors (1).

118884851861 is an equidigital number, since it uses as much as digits as its factorization.

118884851861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3932160, while the sum is 59.

The spelling of 118884851861 in words is "one hundred eighteen billion, eight hundred eighty-four million, eight hundred fifty-one thousand, eight hundred sixty-one".