497471284789 has 2 divisors, whose sum is σ = 497471284790. Its totient is φ = 497471284788.

The previous prime is 497471284759. The next prime is 497471284879. The reversal of 497471284789 is 987482174794.

It is a happy number.

Together with next prime (497471284879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275187323889 + 222283960900 = 524583^2 + 471470^2 .

It is a cyclic number.

It is not a de Polignac number, because 497471284789 - 2¹¹ = 497471282741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497471284759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248735642394 + 248735642395.

It is an arithmetic number, because the mean of its divisors is an integer number (248735642395).

Almost surely, 2^497471284789 is an apocalyptic number.

It is an amenable number.

497471284789 is a deficient number, since it is larger than the sum of its proper divisors (1).

497471284789 is an equidigital number, since it uses as much as digits as its factorization.

497471284789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 227598336, while the sum is 70.

The spelling of 497471284789 in words is "four hundred ninety-seven billion, four hundred seventy-one million, two hundred eighty-four thousand, seven hundred eighty-nine".