117999578678 has 16 divisors (see below), whose sum is σ = 178638804960. Its totient is φ = 58453405056.

The previous prime is 117999578663. The next prime is 117999578771. The reversal of 117999578678 is 876875999711.

It is a junction number, because it is equal to n+sod(n) for n = 117999578599 and 117999578608.

It is a congruent 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, 4246526 + ... + 4274222.

It is an arithmetic number, because the mean of its divisors is an integer number (11164925310).

Almost surely, 2^117999578678 is an apocalyptic number.

117999578678 is a deficient number, since it is larger than the sum of its proper divisors (60639226282).

117999578678 is a wasteful number, since it uses less digits than its factorization.

117999578678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47351.

The product of its digits is 480090240, while the sum is 77.

The spelling of 117999578678 in words is "one hundred seventeen billion, nine hundred ninety-nine million, five hundred seventy-eight thousand, six hundred seventy-eight".