542061434569 has 2 divisors, whose sum is σ = 542061434570. Its totient is φ = 542061434568.

The previous prime is 542061434567. The next prime is 542061434581. The reversal of 542061434569 is 965434160245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538785360400 + 3276074169 = 734020^2 + 57237^2 .

It is a cyclic number.

It is not a de Polignac number, because 542061434569 - 2¹ = 542061434567 is a prime.

It is a super-2 number, since 2×542061434569² (a number of 24 digits) contains 22 as substring.

Together with 542061434567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (542061434567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271030717284 + 271030717285.

It is an arithmetic number, because the mean of its divisors is an integer number (271030717285).

Almost surely, 2^542061434569 is an apocalyptic number.

It is an amenable number.

542061434569 is a deficient number, since it is larger than the sum of its proper divisors (1).

542061434569 is an equidigital number, since it uses as much as digits as its factorization.

542061434569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 542061434569 in words is "five hundred forty-two billion, sixty-one million, four hundred thirty-four thousand, five hundred sixty-nine".