495912861 has 10 divisors (see below), whose sum is σ = 740808222. Its totient is φ = 330608520.

The previous prime is 495912827. The next prime is 495912869. The reversal of 495912861 is 168219594.

It can be written as a sum of positive squares in only one way, i.e., 479872836 + 16040025 = 21906^2 + 4005^2 .

It is not a de Polignac number, because 495912861 - 2¹⁵ = 495880093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495912869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3061110 + ... + 3061271.

Almost surely, 2^495912861 is an apocalyptic number.

It is an amenable number.

495912861 is a deficient number, since it is larger than the sum of its proper divisors (244895361).

495912861 is an equidigital number, since it uses as much as digits as its factorization.

495912861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122393 (or 6122384 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 495912861 is about 22269.1010370872. The cubic root of 495912861 is about 791.5319634796.

The spelling of 495912861 in words is "four hundred ninety-five million, nine hundred twelve thousand, eight hundred sixty-one".