117788461538 has 16 divisors (see below), whose sum is σ = 192964564224. Its totient is φ = 53479151760.

The previous prime is 117788461519. The next prime is 117788461579. The reversal of 117788461538 is 835164887711.

It is a happy number.

117788461538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3033170 + ... + 3071757.

It is an arithmetic number, because the mean of its divisors is an integer number (12060285264).

Almost surely, 2^117788461538 is an apocalyptic number.

117788461538 is a deficient number, since it is larger than the sum of its proper divisors (75176102686).

117788461538 is a wasteful number, since it uses less digits than its factorization.

117788461538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105817.

The product of its digits is 9031680, while the sum is 59.

The spelling of 117788461538 in words is "one hundred seventeen billion, seven hundred eighty-eight million, four hundred sixty-one thousand, five hundred thirty-eight".