495023840641 has 6 divisors (see below), whose sum is σ = 544117114226. Its totient is φ = 450021673200.

The previous prime is 495023840587. The next prime is 495023840681. The reversal of 495023840641 is 146048320594.

It can be written as a sum of positive squares in only one way, i.e., 261193567041 + 233830273600 = 511071^2 + 483560^2 .

It is not a de Polignac number, because 495023840641 - 2²³ = 495015452033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 495023840591 and 495023840600.

It is not an unprimeable number, because it can be changed into a prime (495023840681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2045552940 + ... + 2045553181.

Almost surely, 2^495023840641 is an apocalyptic number.

It is an amenable number.

495023840641 is a deficient number, since it is larger than the sum of its proper divisors (49093273585).

495023840641 is a wasteful number, since it uses less digits than its factorization.

495023840641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091106143 (or 4091106132 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 495023840641 in words is "four hundred ninety-five billion, twenty-three million, eight hundred forty thousand, six hundred forty-one".