194475236419 has 2 divisors, whose sum is σ = 194475236420. Its totient is φ = 194475236418.

The previous prime is 194475236363. The next prime is 194475236437. The reversal of 194475236419 is 914632574491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194475236419 - 2⁹ = 194475235907 is a prime.

It is a super-2 number, since 2×194475236419² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194475236419.

It is not a weakly prime, because it can be changed into another prime (194475236479) 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 as a sum of consecutive naturals, namely, 97237618209 + 97237618210.

It is an arithmetic number, because the mean of its divisors is an integer number (97237618210).

Almost surely, 2^194475236419 is an apocalyptic number.

194475236419 is a deficient number, since it is larger than the sum of its proper divisors (1).

194475236419 is an equidigital number, since it uses as much as digits as its factorization.

194475236419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 55.

The spelling of 194475236419 in words is "one hundred ninety-four billion, four hundred seventy-five million, two hundred thirty-six thousand, four hundred nineteen".