495985911289 has 8 divisors (see below), whose sum is σ = 541081400832. Its totient is φ = 450891398640.

The previous prime is 495985911283. The next prime is 495985911299. The reversal of 495985911289 is 982119589594.

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

It is a cyclic number.

It is not a de Polignac number, because 495985911289 - 2¹³ = 495985903097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495985911283) 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, 1176987 + ... + 1541839.

It is an arithmetic number, because the mean of its divisors is an integer number (67635175104).

Almost surely, 2^495985911289 is an apocalyptic number.

It is an amenable number.

495985911289 is a deficient number, since it is larger than the sum of its proper divisors (45095489543).

495985911289 is a wasteful number, since it uses less digits than its factorization.

495985911289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488447.

The product of its digits is 83980800, while the sum is 70.

The spelling of 495985911289 in words is "four hundred ninety-five billion, nine hundred eighty-five million, nine hundred eleven thousand, two hundred eighty-nine".