194379064874 has 8 divisors (see below), whose sum is σ = 291704787108. Its totient is φ = 97144135840.

The previous prime is 194379064819. The next prime is 194379064879. The reversal of 194379064874 is 478460973491.

It can be written as a sum of positive squares in 2 ways, for example, as 165238185025 + 29140879849 = 406495^2 + 170707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×194379064874² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194379064879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22692947 + ... + 22701510.

Almost surely, 2^194379064874 is an apocalyptic number.

194379064874 is a deficient number, since it is larger than the sum of its proper divisors (97325722234).

194379064874 is a wasteful number, since it uses less digits than its factorization.

194379064874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45396600.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 194379064874 in words is "one hundred ninety-four billion, three hundred seventy-nine million, sixty-four thousand, eight hundred seventy-four".