194366967163778 has 16 divisors (see below), whose sum is σ = 308913815608704. Its totient is φ = 91403596714560.

The previous prime is 194366967163771. The next prime is 194366967163781. The reversal of 194366967163778 is 877361769663491.

It is a junction number, because it is equal to n+sod(n) for n = 194366967163696 and 194366967163705.

It is not an unprimeable number, because it can be changed into a prime (194366967163771) by changing a digit.

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, 1975305158 + ... + 1975403553.

It is an arithmetic number, because the mean of its divisors is an integer number (19307113475544).

Almost surely, 2^{194366967163778} is an apocalyptic number.

194366967163778 is a deficient number, since it is larger than the sum of its proper divisors (114546848444926).

194366967163778 is a wasteful number, since it uses less digits than its factorization.

194366967163778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950710177.

The product of its digits is 10369949184, while the sum is 83.

The spelling of 194366967163778 in words is "one hundred ninety-four trillion, three hundred sixty-six billion, nine hundred sixty-seven million, one hundred sixty-three thousand, seven hundred seventy-eight".