549775577944 has 16 divisors (see below), whose sum is σ = 1031050629000. Its totient is φ = 274828743552.

The previous prime is 549775577933. The next prime is 549775577957. The reversal of 549775577944 is 449775577945.

It is a super-2 number, since 2×549775577944² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7341094 + ... + 7415605.

Almost surely, 2^549775577944 is an apocalyptic number.

It is an amenable number.

549775577944 is a deficient number, since it is larger than the sum of its proper divisors (481275051056).

549775577944 is a wasteful number, since it uses less digits than its factorization.

549775577944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14761362 (or 14761358 counting only the distinct ones).

The product of its digits is 1555848000, while the sum is 73.

Subtracting from 549775577944 its reverse (449775577945), we obtain a palindrome (99999999999).

The spelling of 549775577944 in words is "five hundred forty-nine billion, seven hundred seventy-five million, five hundred seventy-seven thousand, nine hundred forty-four".