5451919418 has 16 divisors (see below), whose sum is σ = 8939077056. Its totient is φ = 2473213440.

The previous prime is 5451919411. The next prime is 5451919423. The reversal of 5451919418 is 8149191545.

It is not an unprimeable number, because it can be changed into a prime (5451919411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235271 + ... + 257402.

It is an arithmetic number, because the mean of its divisors is an integer number (558692316).

Almost surely, 2^5451919418 is an apocalyptic number.

5451919418 is a deficient number, since it is larger than the sum of its proper divisors (3487157638).

5451919418 is a wasteful number, since it uses less digits than its factorization.

5451919418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493189.

The product of its digits is 259200, while the sum is 47.

The square root of 5451919418 is about 73837.1140958258. The cubic root of 5451919418 is about 1760.0154331033.

It can be divided in two parts, 54519 and 19418, that added together give a palindrome (73937).

The spelling of 5451919418 in words is "five billion, four hundred fifty-one million, nine hundred nineteen thousand, four hundred eighteen".