5491454818 has 8 divisors (see below), whose sum is σ = 8721722412. Its totient is φ = 2584214016.

The previous prime is 5491454809. The next prime is 5491454833. The reversal of 5491454818 is 8184541945.

It can be written as a sum of positive squares in 2 ways, for example, as 4538312689 + 953142129 = 67367^2 + 30873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80756655 + ... + 80756722.

Almost surely, 2^5491454818 is an apocalyptic number.

5491454818 is a deficient number, since it is larger than the sum of its proper divisors (3230267594).

5491454818 is a wasteful number, since it uses less digits than its factorization.

5491454818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161513396.

The product of its digits is 921600, while the sum is 49.

The square root of 5491454818 is about 74104.3508709172. The cubic root of 5491454818 is about 1764.2595280881.

The spelling of 5491454818 in words is "five billion, four hundred ninety-one million, four hundred fifty-four thousand, eight hundred eighteen".