495017398957 has 2 divisors, whose sum is σ = 495017398958. Its totient is φ = 495017398956.

The previous prime is 495017398927. The next prime is 495017399057. The reversal of 495017398957 is 759893710594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376095186756 + 118922212201 = 613266^2 + 344851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495017398957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 495017398892 and 495017398901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495017398927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247508699478 + 247508699479.

It is an arithmetic number, because the mean of its divisors is an integer number (247508699479).

Almost surely, 2^495017398957 is an apocalyptic number.

It is an amenable number.

495017398957 is a deficient number, since it is larger than the sum of its proper divisors (1).

495017398957 is an equidigital number, since it uses as much as digits as its factorization.

495017398957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85730400, while the sum is 67.

The spelling of 495017398957 in words is "four hundred ninety-five billion, seventeen million, three hundred ninety-eight thousand, nine hundred fifty-seven".