495459495909 has 24 divisors (see below), whose sum is σ = 837850208832. Its totient is φ = 276214351680.

The previous prime is 495459495841. The next prime is 495459495913. The reversal of 495459495909 is 909594954594.

495459495909 is a `hidden beast` number, since 4 + 9 + 5 + 45 + 9 + 495 + 90 + 9 = 666.

It is not a de Polignac number, because 495459495909 - 2⁹ = 495459495397 is a prime.

It is a super-2 number, since 2×495459495909² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495459495929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95905179 + ... + 95910344.

It is an arithmetic number, because the mean of its divisors is an integer number (34910425368).

Almost surely, 2^495459495909 is an apocalyptic number.

It is an amenable number.

495459495909 is a deficient number, since it is larger than the sum of its proper divisors (342390712923).

495459495909 is a wasteful number, since it uses less digits than its factorization.

495459495909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191815577 (or 191815574 counting only the distinct ones).

The product of its (nonzero) digits is 472392000, while the sum is 72.

The spelling of 495459495909 in words is "four hundred ninety-five billion, four hundred fifty-nine million, four hundred ninety-five thousand, nine hundred nine".