4118494491 has 48 divisors (see below), whose sum is σ = 6440878080. Its totient is φ = 2626810560.

The previous prime is 4118494487. The next prime is 4118494507. The reversal of 4118494491 is 1944948114.

It is a happy number.

4118494491 is a `hidden beast` number, since 4 + 118 + 49 + 4 + 491 = 666.

It is not a de Polignac number, because 4118494491 - 2² = 4118494487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4118494591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 667366 + ... + 673508.

It is an arithmetic number, because the mean of its divisors is an integer number (134184960).

Almost surely, 2^4118494491 is an apocalyptic number.

4118494491 is a deficient number, since it is larger than the sum of its proper divisors (2322383589).

4118494491 is an equidigital number, since it uses as much as digits as its factorization.

4118494491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6278 (or 6266 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 4118494491 is about 64175.4975905914. The cubic root of 4118494491 is about 1602.9236246901.

The spelling of 4118494491 in words is "four billion, one hundred eighteen million, four hundred ninety-four thousand, four hundred ninety-one".