118394567779 has 16 divisors (see below), whose sum is σ = 127571834880. Its totient is φ = 109522938240.

The previous prime is 118394567773. The next prime is 118394567789. The reversal of 118394567779 is 977765493811.

It is a cyclic number.

It is not a de Polignac number, because 118394567779 - 2⁹ = 118394567267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118394567773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233574 + ... + 539764.

It is an arithmetic number, because the mean of its divisors is an integer number (7973239680).

Almost surely, 2^118394567779 is an apocalyptic number.

118394567779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

118394567779 is a deficient number, since it is larger than the sum of its proper divisors (9177267101).

118394567779 is a wasteful number, since it uses less digits than its factorization.

118394567779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306690.

The product of its digits is 80015040, while the sum is 67.

The spelling of 118394567779 in words is "one hundred eighteen billion, three hundred ninety-four million, five hundred sixty-seven thousand, seven hundred seventy-nine".