549128199384 has 48 divisors (see below), whose sum is σ = 1498077870120. Its totient is φ = 181706651520.

The previous prime is 549128199353. The next prime is 549128199391. The reversal of 549128199384 is 483991821945.

549128199384 is a `hidden beast` number, since 5 + 4 + 91 + 2 + 81 + 99 + 384 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27825102 + ... + 27844829.

Almost surely, 2^549128199384 is an apocalyptic number.

It is an amenable number.

549128199384 is an abundant number, since it is smaller than the sum of its proper divisors (948949670736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549128199384 is a wasteful number, since it uses less digits than its factorization.

549128199384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55670080 (or 55670073 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The spelling of 549128199384 in words is "five hundred forty-nine billion, one hundred twenty-eight million, one hundred ninety-nine thousand, three hundred eighty-four".