117489342258 has 54 divisors (see below), whose sum is σ = 256589633469. Its totient is φ = 38853361392.

The previous prime is 117489342253. The next prime is 117489342259. The reversal of 117489342258 is 852243984711.

117489342258 is a `hidden beast` number, since 1 + 1 + 7 + 48 + 9 + 342 + 258 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92426336289 + 25063005969 = 304017^2 + 158313^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=242373.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117489342253) 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, 251582941 + ... + 251583407.

Almost surely, 2^117489342258 is an apocalyptic number.

117489342258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

117489342258 is an abundant number, since it is smaller than the sum of its proper divisors (139100291211).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117489342258 is an frugal number, since it uses more digits than its factorization.

117489342258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 645 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 117489342258 in words is "one hundred seventeen billion, four hundred eighty-nine million, three hundred forty-two thousand, two hundred fifty-eight".