495108891 has 12 divisors (see below), whose sum is σ = 715440960. Its totient is φ = 329941680.

The previous prime is 495108827. The next prime is 495108893. The reversal of 495108891 is 198801594.

495108891 is a `hidden beast` number, since 49 + 510 + 8 + 8 + 91 = 666.

It is not a de Polignac number, because 495108891 - 2⁶ = 495108827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (495108893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16726 + ... + 35636.

It is an arithmetic number, because the mean of its divisors is an integer number (59620080).

Almost surely, 2^495108891 is an apocalyptic number.

495108891 is a deficient number, since it is larger than the sum of its proper divisors (220332069).

495108891 is a wasteful number, since it uses less digits than its factorization.

495108891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21826 (or 21823 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 495108891 is about 22251.0424699608. The cubic root of 495108891 is about 791.1039903387.

The spelling of 495108891 in words is "four hundred ninety-five million, one hundred eight thousand, eight hundred ninety-one".