542342161310461 has 2 divisors, whose sum is σ = 542342161310462. Its totient is φ = 542342161310460.

The previous prime is 542342161310447. The next prime is 542342161310471. The reversal of 542342161310461 is 164013161243245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370821072591225 + 171521088719236 = 19256715^2 + 13096606^2 .

It is a cyclic number.

It is not a de Polignac number, because 542342161310461 - 2⁵ = 542342161310429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542342161310471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271171080655230 + 271171080655231.

It is an arithmetic number, because the mean of its divisors is an integer number (271171080655231).

Almost surely, 2^{542342161310461} is an apocalyptic number.

It is an amenable number.

542342161310461 is a deficient number, since it is larger than the sum of its proper divisors (1).

542342161310461 is an equidigital number, since it uses as much as digits as its factorization.

542342161310461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 542342161310461 in words is "five hundred forty-two trillion, three hundred forty-two billion, one hundred sixty-one million, three hundred ten thousand, four hundred sixty-one".