194168668494 has 16 divisors (see below), whose sum is σ = 411180709968. Its totient is φ = 60915660672.

The previous prime is 194168668469. The next prime is 194168668501. The reversal of 194168668494 is 494866861491.

194168668494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×194168668494³ (a number of 35 digits) contains 333 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 951807097 + ... + 951807300.

It is an arithmetic number, because the mean of its divisors is an integer number (25698794373).

Almost surely, 2^194168668494 is an apocalyptic number.

194168668494 is an abundant number, since it is smaller than the sum of its proper divisors (217012041474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194168668494 is a wasteful number, since it uses less digits than its factorization.

194168668494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903614419.

The product of its digits is 71663616, while the sum is 66.

The spelling of 194168668494 in words is "one hundred ninety-four billion, one hundred sixty-eight million, six hundred sixty-eight thousand, four hundred ninety-four".