494953642533191 has 2 divisors, whose sum is σ = 494953642533192. Its totient is φ = 494953642533190.

The previous prime is 494953642533167. The next prime is 494953642533197. The reversal of 494953642533191 is 191335246359494.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494953642533191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494953642533197) 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, 247476821266595 + 247476821266596.

It is an arithmetic number, because the mean of its divisors is an integer number (247476821266596).

Almost surely, 2^{494953642533191} is an apocalyptic number.

494953642533191 is a deficient number, since it is larger than the sum of its proper divisors (1).

494953642533191 is an equidigital number, since it uses as much as digits as its factorization.

494953642533191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 377913600, while the sum is 68.

The spelling of 494953642533191 in words is "four hundred ninety-four trillion, nine hundred fifty-three billion, six hundred forty-two million, five hundred thirty-three thousand, one hundred ninety-one".