542044654517 has 2 divisors, whose sum is σ = 542044654518. Its totient is φ = 542044654516.

The previous prime is 542044654453. The next prime is 542044654621. The reversal of 542044654517 is 715456440245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482804015281 + 59240639236 = 694841^2 + 243394^2 .

It is a cyclic number.

It is not a de Polignac number, because 542044654517 - 2⁶ = 542044654453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542043654517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271022327258 + 271022327259.

It is an arithmetic number, because the mean of its divisors is an integer number (271022327259).

Almost surely, 2^542044654517 is an apocalyptic number.

It is an amenable number.

542044654517 is a deficient number, since it is larger than the sum of its proper divisors (1).

542044654517 is an equidigital number, since it uses as much as digits as its factorization.

542044654517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688000, while the sum is 47.

The spelling of 542044654517 in words is "five hundred forty-two billion, forty-four million, six hundred fifty-four thousand, five hundred seventeen".