118489473729 has 189 divisors, whose sum is σ = 209523683187. Its totient is φ = 66916951200.

The previous prime is 118489473719. The next prime is 118489473737. The reversal of 118489473729 is 927374984811.

The square root of 118489473729 is 344223.

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

118489473729 is a `hidden beast` number, since 1 + 1 + 84 + 89 + 473 + 7 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3853057329 + 114636416400 = 62073^2 + 338580^2 .

It is not a de Polignac number, because 118489473729 - 2³³ = 109899539137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118489473719) by changing a digit.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 1942450359 + ... + 1942450419.

Almost surely, 2^118489473729 is an apocalyptic number.

118489473729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

118489473729 is the 344223-rd square number.

118489473729 is the 172112-nd centered octagonal number.

It is an amenable number.

118489473729 is a deficient number, since it is larger than the sum of its proper divisors (91034209458).

118489473729 is an frugal number, since it uses more digits than its factorization.

118489473729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 94 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 118489473729 in words is "one hundred eighteen billion, four hundred eighty-nine million, four hundred seventy-three thousand, seven hundred twenty-nine".