54773664689 has 4 divisors (see below), whose sum is σ = 54782575680. Its totient is φ = 54764753700.

The previous prime is 54773664643. The next prime is 54773664707. The reversal of 54773664689 is 98646637745.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98646637745 = 5 ⋅19729327549.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54773664689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54773364689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4446269 + ... + 4458570.

It is an arithmetic number, because the mean of its divisors is an integer number (13695643920).

Almost surely, 2^54773664689 is an apocalyptic number.

It is an amenable number.

54773664689 is a deficient number, since it is larger than the sum of its proper divisors (8910991).

54773664689 is an equidigital number, since it uses as much as digits as its factorization.

54773664689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910990.

The product of its digits is 182891520, while the sum is 65.

The spelling of 54773664689 in words is "fifty-four billion, seven hundred seventy-three million, six hundred sixty-four thousand, six hundred eighty-nine".