497340890191 has 2 divisors, whose sum is σ = 497340890192. Its totient is φ = 497340890190.

The previous prime is 497340890077. The next prime is 497340890209. The reversal of 497340890191 is 191098043794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 497340890191 - 2¹⁵ = 497340857423 is a prime.

It is a super-2 number, since 2×497340890191² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497340890591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248670445095 + 248670445096.

It is an arithmetic number, because the mean of its divisors is an integer number (248670445096).

Almost surely, 2^497340890191 is an apocalyptic number.

497340890191 is a deficient number, since it is larger than the sum of its proper divisors (1).

497340890191 is an equidigital number, since it uses as much as digits as its factorization.

497340890191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 497340890191 in words is "four hundred ninety-seven billion, three hundred forty million, eight hundred ninety thousand, one hundred ninety-one".