542046191873 has 2 divisors, whose sum is σ = 542046191874. Its totient is φ = 542046191872.

The previous prime is 542046191783. The next prime is 542046191903. The reversal of 542046191873 is 378191640245.

It is a happy number.

Together with previous prime (542046191783) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510686032129 + 31360159744 = 714623^2 + 177088^2 .

It is a cyclic number.

It is not a de Polignac number, because 542046191873 - 2¹⁶ = 542046126337 is a prime.

It is a super-2 number, since 2×542046191873² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542046193873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271023095936 + 271023095937.

It is an arithmetic number, because the mean of its divisors is an integer number (271023095937).

It is a 1-persistent number, because it is pandigital, but 2⋅542046191873 = 1084092383746 is not.

Almost surely, 2^542046191873 is an apocalyptic number.

It is an amenable number.

542046191873 is a deficient number, since it is larger than the sum of its proper divisors (1).

542046191873 is an equidigital number, since it uses as much as digits as its factorization.

542046191873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 542046191873 in words is "five hundred forty-two billion, forty-six million, one hundred ninety-one thousand, eight hundred seventy-three".