5451218331 has 16 divisors (see below), whose sum is σ = 7828771104. Its totient is φ = 3354004224.

The previous prime is 5451218321. The next prime is 5451218347. The reversal of 5451218331 is 1338121545.

It is not a de Polignac number, because 5451218331 - 2¹⁰ = 5451217307 is a prime.

It is a super-2 number, since 2×5451218331² = 59431562584460851122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5451218292 and 5451218301.

It is not an unprimeable number, because it can be changed into a prime (5451218321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336735 + ... + 352551.

It is an arithmetic number, because the mean of its divisors is an integer number (489298194).

Almost surely, 2^5451218331 is an apocalyptic number.

5451218331 is a deficient number, since it is larger than the sum of its proper divisors (2377552773).

5451218331 is a wasteful number, since it uses less digits than its factorization.

5451218331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24670.

The product of its digits is 14400, while the sum is 33.

The square root of 5451218331 is about 73832.3664188004. The cubic root of 5451218331 is about 1759.9399870851.

Adding to 5451218331 its reverse (1338121545), we get a palindrome (6789339876).

The spelling of 5451218331 in words is "five billion, four hundred fifty-one million, two hundred eighteen thousand, three hundred thirty-one".