495956809231 has 8 divisors (see below), whose sum is σ = 552524827680. Its totient is φ = 442019861472.

The previous prime is 495956809151. The next prime is 495956809237. The reversal of 495956809231 is 132908659594.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495956809231 is a prime.

It is a super-2 number, since 2×495956809231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 495956809231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495956809237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657767275 + ... + 657768028.

It is an arithmetic number, because the mean of its divisors is an integer number (69065603460).

Almost surely, 2^495956809231 is an apocalyptic number.

495956809231 is a deficient number, since it is larger than the sum of its proper divisors (56568018449).

495956809231 is a wasteful number, since it uses less digits than its factorization.

495956809231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315535345.

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 495956809231 in words is "four hundred ninety-five billion, nine hundred fifty-six million, eight hundred nine thousand, two hundred thirty-one".