546128371281 has 4 divisors (see below), whose sum is σ = 728171161712. Its totient is φ = 364085580852.

The previous prime is 546128371267. The next prime is 546128371303. The reversal of 546128371281 is 182173821645.

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 not a de Polignac number, because 546128371281 - 2¹¹ = 546128369233 is a prime.

It is a super-2 number, since 2×546128371281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 546128371281.

It is not an unprimeable number, because it can be changed into a prime (546128371211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91021395211 + ... + 91021395216.

It is an arithmetic number, because the mean of its divisors is an integer number (182042790428).

Almost surely, 2^546128371281 is an apocalyptic number.

It is an amenable number.

546128371281 is a deficient number, since it is larger than the sum of its proper divisors (182042790431).

546128371281 is a wasteful number, since it uses less digits than its factorization.

546128371281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182042790430.

The product of its digits is 645120, while the sum is 48.

The spelling of 546128371281 in words is "five hundred forty-six billion, one hundred twenty-eight million, three hundred seventy-one thousand, two hundred eighty-one".