545646039811 has 2 divisors, whose sum is σ = 545646039812. Its totient is φ = 545646039810.

The previous prime is 545646039797. The next prime is 545646039881. The reversal of 545646039811 is 118930646545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545646039811 - 2⁹ = 545646039299 is a prime.

It is a super-3 number, since 3×545646039811³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (545646039881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272823019905 + 272823019906.

It is an arithmetic number, because the mean of its divisors is an integer number (272823019906).

Almost surely, 2^545646039811 is an apocalyptic number.

545646039811 is a deficient number, since it is larger than the sum of its proper divisors (1).

545646039811 is an equidigital number, since it uses as much as digits as its factorization.

545646039811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 545646039811 in words is "five hundred forty-five billion, six hundred forty-six million, thirty-nine thousand, eight hundred eleven".