495268861 has 4 divisors (see below), whose sum is σ = 496648800. Its totient is φ = 493888924.

The previous prime is 495268849. The next prime is 495268897. The reversal of 495268861 is 168862594.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 495268861 - 2¹¹ = 495266813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495268811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689431 + ... + 690148.

It is an arithmetic number, because the mean of its divisors is an integer number (124162200).

Almost surely, 2^495268861 is an apocalyptic number.

It is an amenable number.

495268861 is a deficient number, since it is larger than the sum of its proper divisors (1379939).

495268861 is a wasteful number, since it uses less digits than its factorization.

495268861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379938.

The product of its digits is 829440, while the sum is 49.

The square root of 495268861 is about 22254.6368426897. The cubic root of 495268861 is about 791.1891832328.

The spelling of 495268861 in words is "four hundred ninety-five million, two hundred sixty-eight thousand, eight hundred sixty-one".