191114583218 has 48 divisors (see below), whose sum is σ = 328956957000. Its totient is φ = 83087746560.

The previous prime is 191114583211. The next prime is 191114583241. The reversal of 191114583218 is 812385411191.

It can be written as a sum of positive squares in 12 ways, for example, as 31663711249 + 159450871969 = 177943^2 + 399313^2 .

It is not an unprimeable number, because it can be changed into a prime (191114583211) 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, 164108 + ... + 639656.

Almost surely, 2^191114583218 is an apocalyptic number.

191114583218 is a deficient number, since it is larger than the sum of its proper divisors (137842373782).

191114583218 is a wasteful number, since it uses less digits than its factorization.

191114583218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475647 (or 475634 counting only the distinct ones).

The product of its digits is 69120, while the sum is 44.

The spelling of 191114583218 in words is "one hundred ninety-one billion, one hundred fourteen million, five hundred eighty-three thousand, two hundred eighteen".