194475237443 has 2 divisors, whose sum is σ = 194475237444. Its totient is φ = 194475237442.

The previous prime is 194475237419. The next prime is 194475237469. The reversal of 194475237443 is 344732574491.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194475237443 - 2¹⁰ = 194475236419 is a prime.

It is a super-2 number, since 2×194475237443² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (194475237413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97237618721 + 97237618722.

It is an arithmetic number, because the mean of its divisors is an integer number (97237618722).

Almost surely, 2^194475237443 is an apocalyptic number.

194475237443 is a deficient number, since it is larger than the sum of its proper divisors (1).

194475237443 is an equidigital number, since it uses as much as digits as its factorization.

194475237443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 53.

The spelling of 194475237443 in words is "one hundred ninety-four billion, four hundred seventy-five million, two hundred thirty-seven thousand, four hundred forty-three".