542066251787 has 2 divisors, whose sum is σ = 542066251788. Its totient is φ = 542066251786.

The previous prime is 542066251763. The next prime is 542066251823. The reversal of 542066251787 is 787152660245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542066251787 - 2¹⁰ = 542066250763 is a prime.

It is not a weakly prime, because it can be changed into another prime (542066251687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271033125893 + 271033125894.

It is an arithmetic number, because the mean of its divisors is an integer number (271033125894).

Almost surely, 2^542066251787 is an apocalyptic number.

542066251787 is a deficient number, since it is larger than the sum of its proper divisors (1).

542066251787 is an equidigital number, since it uses as much as digits as its factorization.

542066251787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 542066251787 in words is "five hundred forty-two billion, sixty-six million, two hundred fifty-one thousand, seven hundred eighty-seven".