194740582633 has 2 divisors, whose sum is σ = 194740582634. Its totient is φ = 194740582632.

The previous prime is 194740582577. The next prime is 194740582661. The reversal of 194740582633 is 336285047491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182202629904 + 12537952729 = 426852^2 + 111973^2 .

It is a cyclic number.

It is not a de Polignac number, because 194740582633 - 2²⁹ = 194203711721 is a prime.

It is not a weakly prime, because it can be changed into another prime (194740582133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97370291316 + 97370291317.

It is an arithmetic number, because the mean of its divisors is an integer number (97370291317).

It is a 1-persistent number, because it is pandigital, but 2⋅194740582633 = 389481165266 is not.

Almost surely, 2^194740582633 is an apocalyptic number.

It is an amenable number.

194740582633 is a deficient number, since it is larger than the sum of its proper divisors (1).

194740582633 is an equidigital number, since it uses as much as digits as its factorization.

194740582633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 194740582633 in words is "one hundred ninety-four billion, seven hundred forty million, five hundred eighty-two thousand, six hundred thirty-three".