54142041213809 has 2 divisors, whose sum is σ = 54142041213810. Its totient is φ = 54142041213808.

The previous prime is 54142041213749. The next prime is 54142041213811. The reversal of 54142041213809 is 90831214024145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29646500419600 + 24495540794209 = 5444860^2 + 4949297^2 .

It is a cyclic number.

It is not a de Polignac number, because 54142041213809 - 2¹² = 54142041209713 is a prime.

Together with 54142041213811, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54142041213809.

It is not a weakly prime, because it can be changed into another prime (54142041213859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27071020606904 + 27071020606905.

It is an arithmetic number, because the mean of its divisors is an integer number (27071020606905).

Almost surely, 2^{54142041213809} is an apocalyptic number.

It is an amenable number.

54142041213809 is a deficient number, since it is larger than the sum of its proper divisors (1).

54142041213809 is an equidigital number, since it uses as much as digits as its factorization.

54142041213809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 54142041213809 in words is "fifty-four trillion, one hundred forty-two billion, forty-one million, two hundred thirteen thousand, eight hundred nine".