542364306641 has 2 divisors, whose sum is σ = 542364306642. Its totient is φ = 542364306640.

The previous prime is 542364306629. The next prime is 542364306691. The reversal of 542364306641 is 146603463245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362422060225 + 179942246416 = 602015^2 + 424196^2 .

It is a cyclic number.

It is not a de Polignac number, because 542364306641 - 2²² = 542360112337 is a prime.

It is a super-2 number, since 2×542364306641² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542364306592 and 542364306601.

It is not a weakly prime, because it can be changed into another prime (542364306611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271182153320 + 271182153321.

It is an arithmetic number, because the mean of its divisors is an integer number (271182153321).

Almost surely, 2^542364306641 is an apocalyptic number.

It is an amenable number.

542364306641 is a deficient number, since it is larger than the sum of its proper divisors (1).

542364306641 is an equidigital number, since it uses as much as digits as its factorization.

542364306641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 542364306641 its reverse (146603463245), we get a palindrome (688967769886).

The spelling of 542364306641 in words is "five hundred forty-two billion, three hundred sixty-four million, three hundred six thousand, six hundred forty-one".