118909000057 has 2 divisors, whose sum is σ = 118909000058. Its totient is φ = 118909000056.

The previous prime is 118909000051. The next prime is 118909000073. The reversal of 118909000057 is 750000909811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89152405056 + 29756595001 = 298584^2 + 172501^2 .

It is an emirp because it is prime and its reverse (750000909811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118909000057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118908999983 and 118909000019.

It is not a weakly prime, because it can be changed into another prime (118909000051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59454500028 + 59454500029.

It is an arithmetic number, because the mean of its divisors is an integer number (59454500029).

Almost surely, 2^118909000057 is an apocalyptic number.

It is an amenable number.

118909000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

118909000057 is an equidigital number, since it uses as much as digits as its factorization.

118909000057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

Adding to 118909000057 its reverse (750000909811), we get a palindrome (868909909868).

The spelling of 118909000057 in words is "one hundred eighteen billion, nine hundred nine million, fifty-seven", and thus it is an aban number.