117783641858 has 16 divisors (see below), whose sum is σ = 184872961536. Its totient is φ = 56211369120.

The previous prime is 117783641849. The next prime is 117783641869. The reversal of 117783641858 is 858146387711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 117783641797 and 117783641806.

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, 13007366 + ... + 13016417.

It is an arithmetic number, because the mean of its divisors is an integer number (11554560096).

Almost surely, 2^117783641858 is an apocalyptic number.

117783641858 is a deficient number, since it is larger than the sum of its proper divisors (67089319678).

117783641858 is a wasteful number, since it uses less digits than its factorization.

117783641858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26023889.

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

The spelling of 117783641858 in words is "one hundred seventeen billion, seven hundred eighty-three million, six hundred forty-one thousand, eight hundred fifty-eight".