546727149638209 has 4 divisors (see below), whose sum is σ = 549178840892416. Its totient is φ = 544275458384004.

The previous prime is 546727149638161. The next prime is 546727149638309. The reversal of 546727149638209 is 902836941727645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546727149638209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546727149638309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225845626769 + ... + 1225845627214.

It is an arithmetic number, because the mean of its divisors is an integer number (137294710223104).

It is a 2-persistent number, because it is pandigital, and so is 2⋅546727149638209 = 1093454299276418, but 3⋅546727149638209 = 1640181448914627 is not.

Almost surely, 2^{546727149638209} is an apocalyptic number.

It is an amenable number.

546727149638209 is a deficient number, since it is larger than the sum of its proper divisors (2451691254207).

546727149638209 is a wasteful number, since it uses less digits than its factorization.

546727149638209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451691254206.

The product of its (nonzero) digits is 1097349120, while the sum is 73.

The spelling of 546727149638209 in words is "five hundred forty-six trillion, seven hundred twenty-seven billion, one hundred forty-nine million, six hundred thirty-eight thousand, two hundred nine".