497787742841 has 2 divisors, whose sum is σ = 497787742842. Its totient is φ = 497787742840.

The previous prime is 497787742763. The next prime is 497787742847. The reversal of 497787742841 is 148247787794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461069518441 + 36718224400 = 679021^2 + 191620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497787742841 is a prime.

It is not a weakly prime, because it can be changed into another prime (497787742847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248893871420 + 248893871421.

It is an arithmetic number, because the mean of its divisors is an integer number (248893871421).

Almost surely, 2^497787742841 is an apocalyptic number.

It is an amenable number.

497787742841 is a deficient number, since it is larger than the sum of its proper divisors (1).

497787742841 is an equidigital number, since it uses as much as digits as its factorization.

497787742841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 177020928, while the sum is 68.

The spelling of 497787742841 in words is "four hundred ninety-seven billion, seven hundred eighty-seven million, seven hundred forty-two thousand, eight hundred forty-one".