117742105538 has 8 divisors (see below), whose sum is σ = 176619161232. Its totient is φ = 58869051796.

The previous prime is 117742105531. The next prime is 117742105549. The reversal of 117742105538 is 835501247711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (117742105531) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 925820 + ... + 1045287.

It is an arithmetic number, because the mean of its divisors is an integer number (22077395154).

Almost surely, 2^117742105538 is an apocalyptic number.

117742105538 is a deficient number, since it is larger than the sum of its proper divisors (58877055694).

117742105538 is a wasteful number, since it uses less digits than its factorization.

117742105538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000976.

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 117742105538 in words is "one hundred seventeen billion, seven hundred forty-two million, one hundred five thousand, five hundred thirty-eight".