542220816751 has 2 divisors, whose sum is σ = 542220816752. Its totient is φ = 542220816750.

The previous prime is 542220816727. The next prime is 542220816799. The reversal of 542220816751 is 157618022245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542220816751 - 2¹⁷ = 542220685679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542220816698 and 542220816707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542220816251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271110408375 + 271110408376.

It is an arithmetic number, because the mean of its divisors is an integer number (271110408376).

Almost surely, 2^542220816751 is an apocalyptic number.

542220816751 is a deficient number, since it is larger than the sum of its proper divisors (1).

542220816751 is an equidigital number, since it uses as much as digits as its factorization.

542220816751 is an odious number, because the sum of its binary digits is odd.

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

Adding to 542220816751 its reverse (157618022245), we get a palindrome (699838838996).

The spelling of 542220816751 in words is "five hundred forty-two billion, two hundred twenty million, eight hundred sixteen thousand, seven hundred fifty-one".