1816110458 has 4 divisors (see below), whose sum is σ = 2724165690. Its totient is φ = 908055228.

The previous prime is 1816110449. The next prime is 1816110481. The reversal of 1816110458 is 8540116181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8540116181 = 19 ⋅449479799.

It can be written as a sum of positive squares in only one way, i.e., 1005968089 + 810142369 = 31717^2 + 28463^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454027613 + ... + 454027616.

Almost surely, 2^1816110458 is an apocalyptic number.

1816110458 is a deficient number, since it is larger than the sum of its proper divisors (908055232).

1816110458 is an equidigital number, since it uses as much as digits as its factorization.

1816110458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908055231.

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 1816110458 is about 42615.8474983192. The cubic root of 1816110458 is about 1220.0587757225.

The spelling of 1816110458 in words is "one billion, eight hundred sixteen million, one hundred ten thousand, four hundred fifty-eight".