542042241456497 has 2 divisors, whose sum is σ = 542042241456498. Its totient is φ = 542042241456496.

The previous prime is 542042241456491. The next prime is 542042241456619. The reversal of 542042241456497 is 794654142240245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504727626228736 + 37314615227761 = 22466144^2 + 6108569^2 .

It is a cyclic number.

It is not a de Polignac number, because 542042241456497 - 2⁶ = 542042241456433 is a prime.

It is a super-2 number, since 2×542042241456497² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542042241456491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271021120728248 + 271021120728249.

It is an arithmetic number, because the mean of its divisors is an integer number (271021120728249).

Almost surely, 2^{542042241456497} is an apocalyptic number.

It is an amenable number.

542042241456497 is a deficient number, since it is larger than the sum of its proper divisors (1).

542042241456497 is an equidigital number, since it uses as much as digits as its factorization.

542042241456497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77414400, while the sum is 59.

The spelling of 542042241456497 in words is "five hundred forty-two trillion, forty-two billion, two hundred forty-one million, four hundred fifty-six thousand, four hundred ninety-seven".