194194163479 has 12 divisors (see below), whose sum is σ = 206700176592. Its totient is φ = 181813480640.

The previous prime is 194194163461. The next prime is 194194163483. The reversal of 194194163479 is 974361491491.

It is not a de Polignac number, because 194194163479 - 2¹¹ = 194194161431 is a prime.

It is a super-2 number, since 2×194194163479² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194194163419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 463614 + ... + 776740.

It is an arithmetic number, because the mean of its divisors is an integer number (17225014716).

Almost surely, 2^194194163479 is an apocalyptic number.

194194163479 is a deficient number, since it is larger than the sum of its proper divisors (12506013113).

194194163479 is an equidigital number, since it uses as much as digits as its factorization.

194194163479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313526 (or 313335 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 58.

The spelling of 194194163479 in words is "one hundred ninety-four billion, one hundred ninety-four million, one hundred sixty-three thousand, four hundred seventy-nine".