542340154024423 has 2 divisors, whose sum is σ = 542340154024424. Its totient is φ = 542340154024422.

The previous prime is 542340154024369. The next prime is 542340154024447. The reversal of 542340154024423 is 324420451043245.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542340154024423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542340154024423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542340154028423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271170077012211 + 271170077012212.

It is an arithmetic number, because the mean of its divisors is an integer number (271170077012212).

Almost surely, 2^{542340154024423} is an apocalyptic number.

542340154024423 is a deficient number, since it is larger than the sum of its proper divisors (1).

542340154024423 is an equidigital number, since it uses as much as digits as its factorization.

542340154024423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1843200, while the sum is 43.

The spelling of 542340154024423 in words is "five hundred forty-two trillion, three hundred forty billion, one hundred fifty-four million, twenty-four thousand, four hundred twenty-three".