497699899969 has 2 divisors, whose sum is σ = 497699899970. Its totient is φ = 497699899968.

The previous prime is 497699899919. The next prime is 497699899981. The reversal of 497699899969 is 969998996794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416354015025 + 81345884944 = 645255^2 + 285212^2 .

It is a cyclic number.

It is not a de Polignac number, because 497699899969 - 2¹¹ = 497699897921 is a prime.

It is a super-2 number, since 2×497699899969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (497699899919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248849949984 + 248849949985.

It is an arithmetic number, because the mean of its divisors is an integer number (248849949985).

Almost surely, 2^497699899969 is an apocalyptic number.

It is an amenable number.

497699899969 is a deficient number, since it is larger than the sum of its proper divisors (1).

497699899969 is an equidigital number, since it uses as much as digits as its factorization.

497699899969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38569862016, while the sum is 94.

The spelling of 497699899969 in words is "four hundred ninety-seven billion, six hundred ninety-nine million, eight hundred ninety-nine thousand, nine hundred sixty-nine".