118322681977 has 2 divisors, whose sum is σ = 118322681978. Its totient is φ = 118322681976.

The previous prime is 118322681881. The next prime is 118322681987. The reversal of 118322681977 is 779186223811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90012600441 + 28310081536 = 300021^2 + 168256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118322681977 is a prime.

It is not a weakly prime, because it can be changed into another prime (118322681987) 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, 59161340988 + 59161340989.

It is an arithmetic number, because the mean of its divisors is an integer number (59161340989).

Almost surely, 2^118322681977 is an apocalyptic number.

It is an amenable number.

118322681977 is a deficient number, since it is larger than the sum of its proper divisors (1).

118322681977 is an equidigital number, since it uses as much as digits as its factorization.

118322681977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 55.

The spelling of 118322681977 in words is "one hundred eighteen billion, three hundred twenty-two million, six hundred eighty-one thousand, nine hundred seventy-seven".