497861695369 has 2 divisors, whose sum is σ = 497861695370. Its totient is φ = 497861695368.

The previous prime is 497861695361. The next prime is 497861695381. The reversal of 497861695369 is 963596168794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497694975625 + 166719744 = 705475^2 + 12912^2 .

It is a cyclic number.

It is not a de Polignac number, because 497861695369 - 2³ = 497861695361 is a prime.

It is a super-2 number, since 2×497861695369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (497861695361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248930847684 + 248930847685.

It is an arithmetic number, because the mean of its divisors is an integer number (248930847685).

Almost surely, 2^497861695369 is an apocalyptic number.

It is an amenable number.

497861695369 is a deficient number, since it is larger than the sum of its proper divisors (1).

497861695369 is an equidigital number, since it uses as much as digits as its factorization.

497861695369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529079040, while the sum is 73.

The spelling of 497861695369 in words is "four hundred ninety-seven billion, eight hundred sixty-one million, six hundred ninety-five thousand, three hundred sixty-nine".