118799999977 has 2 divisors, whose sum is σ = 118799999978. Its totient is φ = 118799999976.

The previous prime is 118799999951. The next prime is 118800000061. The reversal of 118799999977 is 779999997811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67590120361 + 51209879616 = 259981^2 + 226296^2 .

It is a cyclic number.

It is not a de Polignac number, because 118799999977 - 2¹¹ = 118799997929 is a prime.

It is a super-2 number, since 2×118799999977² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118799999894 and 118799999903.

It is not a weakly prime, because it can be changed into another prime (118799991977) 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, 59399999988 + 59399999989.

It is an arithmetic number, because the mean of its divisors is an integer number (59399999989).

Almost surely, 2^118799999977 is an apocalyptic number.

It is an amenable number.

118799999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

118799999977 is an equidigital number, since it uses as much as digits as its factorization.

118799999977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458274104, while the sum is 85.

The spelling of 118799999977 in words is "one hundred eighteen billion, seven hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-seven".