118197819459 has 10 divisors (see below), whose sum is σ = 176567113140. Its totient is φ = 78798546252.

The previous prime is 118197819409. The next prime is 118197819463. The reversal of 118197819459 is 954918791811.

118197819459 is a `hidden beast` number, since 1 + 1 + 81 + 97 + 8 + 19 + 459 = 666.

It is not a de Polignac number, because 118197819459 - 2⁸ = 118197819203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118197819396 and 118197819405.

It is not an unprimeable number, because it can be changed into a prime (118197819409) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 729616089 + ... + 729616250.

It is an arithmetic number, because the mean of its divisors is an integer number (17656711314).

Almost surely, 2^118197819459 is an apocalyptic number.

118197819459 is a deficient number, since it is larger than the sum of its proper divisors (58369293681).

118197819459 is an equidigital number, since it uses as much as digits as its factorization.

118197819459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459232351 (or 1459232342 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 63.

The spelling of 118197819459 in words is "one hundred eighteen billion, one hundred ninety-seven million, eight hundred nineteen thousand, four hundred fifty-nine".