5218647451 has 2 divisors, whose sum is σ = 5218647452. Its totient is φ = 5218647450.

The previous prime is 5218647443. The next prime is 5218647479. The reversal of 5218647451 is 1547468125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5218647451 - 2³ = 5218647443 is a prime.

It is a super-3 number, since 3×5218647451³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5218647398 and 5218647407.

It is not a weakly prime, because it can be changed into another prime (5218647151) by changing a digit.

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, 2609323725 + 2609323726.

It is an arithmetic number, because the mean of its divisors is an integer number (2609323726).

Almost surely, 2^5218647451 is an apocalyptic number.

5218647451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218647451 is an equidigital number, since it uses as much as digits as its factorization.

5218647451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 43.

The square root of 5218647451 is about 72240.2066096160. The cubic root of 5218647451 is about 1734.5466569622.

The spelling of 5218647451 in words is "five billion, two hundred eighteen million, six hundred forty-seven thousand, four hundred fifty-one".