542220816727 has 2 divisors, whose sum is σ = 542220816728. Its totient is φ = 542220816726.

The previous prime is 542220816707. The next prime is 542220816751. The reversal of 542220816727 is 727618022245.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542220816727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542220816707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271110408363 + 271110408364.

It is an arithmetic number, because the mean of its divisors is an integer number (271110408364).

Almost surely, 2^542220816727 is an apocalyptic number.

542220816727 is a deficient number, since it is larger than the sum of its proper divisors (1).

542220816727 is an equidigital number, since it uses as much as digits as its factorization.

542220816727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 542220816727 in words is "five hundred forty-two billion, two hundred twenty million, eight hundred sixteen thousand, seven hundred twenty-seven".