542061565613 has 2 divisors, whose sum is σ = 542061565614. Its totient is φ = 542061565612.

The previous prime is 542061565597. The next prime is 542061565679. The reversal of 542061565613 is 316565160245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531298125604 + 10763440009 = 728902^2 + 103747^2 .

It is a cyclic number.

It is not a de Polignac number, because 542061565613 - 2⁴ = 542061565597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542061565313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271030782806 + 271030782807.

It is an arithmetic number, because the mean of its divisors is an integer number (271030782807).

Almost surely, 2^542061565613 is an apocalyptic number.

It is an amenable number.

542061565613 is a deficient number, since it is larger than the sum of its proper divisors (1).

542061565613 is an equidigital number, since it uses as much as digits as its factorization.

542061565613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 542061565613 in words is "five hundred forty-two billion, sixty-one million, five hundred sixty-five thousand, six hundred thirteen".