117678717345 has 64 divisors (see below), whose sum is σ = 222686392320. Its totient is φ = 51921746688.

The previous prime is 117678717311. The next prime is 117678717383. The reversal of 117678717345 is 543717876711.

It is not a de Polignac number, because 117678717345 - 2⁹ = 117678716833 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11026702 + ... + 11037368.

It is an arithmetic number, because the mean of its divisors is an integer number (3479474880).

Almost surely, 2^117678717345 is an apocalyptic number.

117678717345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117678717345 is a deficient number, since it is larger than the sum of its proper divisors (105007674975).

117678717345 is a wasteful number, since it uses less digits than its factorization.

117678717345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14334.

The product of its digits is 6914880, while the sum is 57.

The spelling of 117678717345 in words is "one hundred seventeen billion, six hundred seventy-eight million, seven hundred seventeen thousand, three hundred forty-five".