497169867851 has 2 divisors, whose sum is σ = 497169867852. Its totient is φ = 497169867850.

The previous prime is 497169867847. The next prime is 497169867871. The reversal of 497169867851 is 158768961794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497169867851 - 2² = 497169867847 is a prime.

It is not a weakly prime, because it can be changed into another prime (497169867871) 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, 248584933925 + 248584933926.

It is an arithmetic number, because the mean of its divisors is an integer number (248584933926).

Almost surely, 2^497169867851 is an apocalyptic number.

497169867851 is a deficient number, since it is larger than the sum of its proper divisors (1).

497169867851 is an equidigital number, since it uses as much as digits as its factorization.

497169867851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 182891520, while the sum is 71.

The spelling of 497169867851 in words is "four hundred ninety-seven billion, one hundred sixty-nine million, eight hundred sixty-seven thousand, eight hundred fifty-one".