117967886785861 has 24 divisors (see below), whose sum is σ = 143201144177280. Its totient is φ = 96714445699872.

The previous prime is 117967886785829. The next prime is 117967886785891. The reversal of 117967886785861 is 168587688769711.

It is not a de Polignac number, because 117967886785861 - 2⁵ = 117967886785829 is a prime.

It is a super-2 number, since 2×117967886785861² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117967886785891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21509440 + ... + 26430886.

It is an arithmetic number, because the mean of its divisors is an integer number (5966714340720).

Almost surely, 2^{117967886785861} is an apocalyptic number.

It is an amenable number.

117967886785861 is a deficient number, since it is larger than the sum of its proper divisors (25233257391419).

117967886785861 is a wasteful number, since it uses less digits than its factorization.

117967886785861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942753 (or 4942746 counting only the distinct ones).

The product of its digits is 13655900160, while the sum is 88.

The spelling of 117967886785861 in words is "one hundred seventeen trillion, nine hundred sixty-seven billion, eight hundred eighty-six million, seven hundred eighty-five thousand, eight hundred sixty-one".