5218239364451 has 2 divisors, whose sum is σ = 5218239364452. Its totient is φ = 5218239364450.

The previous prime is 5218239364423. The next prime is 5218239364477. The reversal of 5218239364451 is 1544639328125.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5218239364451 - 2¹⁰ = 5218239363427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5218239364393 and 5218239364402.

It is not a weakly prime, because it can be changed into another prime (5218239364951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609119682225 + 2609119682226.

It is an arithmetic number, because the mean of its divisors is an integer number (2609119682226).

Almost surely, 2^{5218239364451} is an apocalyptic number.

5218239364451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218239364451 is an equidigital number, since it uses as much as digits as its factorization.

5218239364451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6220800, while the sum is 53.

The spelling of 5218239364451 in words is "five trillion, two hundred eighteen billion, two hundred thirty-nine million, three hundred sixty-four thousand, four hundred fifty-one".