118168875049 has 27 divisors (see below), whose sum is σ = 127733128047. Its totient is φ = 109298225664.

The previous prime is 118168875017. The next prime is 118168875059. The reversal of 118168875049 is 940578861811.

The square root of 118168875049 is 343757.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 58372976025 + 59795899024 = 241605^2 + 244532^2 .

It is not a de Polignac number, because 118168875049 - 2⁵ = 118168875017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118168874984 and 118168875002.

It is not an unprimeable number, because it can be changed into a prime (118168875059) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 426602299 + ... + 426602575.

Almost surely, 2^118168875049 is an apocalyptic number.

118168875049 is the 343757-th square number.

118168875049 is the 171879-th centered octagonal number.

It is an amenable number.

118168875049 is a deficient number, since it is larger than the sum of its proper divisors (9564252998).

118168875049 is an frugal number, since it uses more digits than its factorization.

118168875049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 58.

The spelling of 118168875049 in words is "one hundred eighteen billion, one hundred sixty-eight million, eight hundred seventy-five thousand, forty-nine".