118581759991 has 2 divisors, whose sum is σ = 118581759992. Its totient is φ = 118581759990.

The previous prime is 118581759979. The next prime is 118581760027. The reversal of 118581759991 is 199957185811.

It is a weak prime.

It is an emirp because it is prime and its reverse (199957185811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118581759991 - 2²⁷ = 118447542263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118581759971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59290879995 + 59290879996.

It is an arithmetic number, because the mean of its divisors is an integer number (59290879996).

Almost surely, 2^118581759991 is an apocalyptic number.

118581759991 is a deficient number, since it is larger than the sum of its proper divisors (1).

118581759991 is an equidigital number, since it uses as much as digits as its factorization.

118581759991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8164800, while the sum is 64.

The spelling of 118581759991 in words is "one hundred eighteen billion, five hundred eighty-one million, seven hundred fifty-nine thousand, nine hundred ninety-one".