218848125451 has 2 divisors, whose sum is σ = 218848125452. Its totient is φ = 218848125450.

The previous prime is 218848125443. The next prime is 218848125479. The reversal of 218848125451 is 154521848812.

218848125451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218848125451 - 2³ = 218848125443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 218848125395 and 218848125404.

It is not a weakly prime, because it can be changed into another prime (218848125491) 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, 109424062725 + 109424062726.

It is an arithmetic number, because the mean of its divisors is an integer number (109424062726).

Almost surely, 2^218848125451 is an apocalyptic number.

218848125451 is a deficient number, since it is larger than the sum of its proper divisors (1).

218848125451 is an equidigital number, since it uses as much as digits as its factorization.

218848125451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 819200, while the sum is 49.

The spelling of 218848125451 in words is "two hundred eighteen billion, eight hundred forty-eight million, one hundred twenty-five thousand, four hundred fifty-one".