542061560641 has 2 divisors, whose sum is σ = 542061560642. Its totient is φ = 542061560640.

The previous prime is 542061560639. The next prime is 542061560659. The reversal of 542061560641 is 146065160245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357011030016 + 185050530625 = 597504^2 + 430175^2 .

It is a cyclic number.

It is not a de Polignac number, because 542061560641 - 2¹ = 542061560639 is a prime.

Together with 542061560639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 542061560594 and 542061560603.

It is not a weakly prime, because it can be changed into another prime (542061560611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271030780320 + 271030780321.

It is an arithmetic number, because the mean of its divisors is an integer number (271030780321).

Almost surely, 2^542061560641 is an apocalyptic number.

It is an amenable number.

542061560641 is a deficient number, since it is larger than the sum of its proper divisors (1).

542061560641 is an equidigital number, since it uses as much as digits as its factorization.

542061560641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 542061560641 in words is "five hundred forty-two billion, sixty-one million, five hundred sixty thousand, six hundred forty-one".