118209538975 has 36 divisors (see below), whose sum is σ = 161566804152. Its totient is φ = 85078120000.

The previous prime is 118209538961. The next prime is 118209538987. The reversal of 118209538975 is 579835902811.

It is a happy number.

It is not a de Polignac number, because 118209538975 - 2⁹ = 118209538463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 35 ways as a sum of consecutive naturals, for example, 57298794 + ... + 57300856.

It is an arithmetic number, because the mean of its divisors is an integer number (4487966782).

Almost surely, 2^118209538975 is an apocalyptic number.

118209538975 is a deficient number, since it is larger than the sum of its proper divisors (43357265177).

118209538975 is an equidigital number, since it uses as much as digits as its factorization.

118209538975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 58.

The spelling of 118209538975 in words is "one hundred eighteen billion, two hundred nine million, five hundred thirty-eight thousand, nine hundred seventy-five".