549532128648 has 32 divisors (see below), whose sum is σ = 1373877812160. Its totient is φ = 183171044160.

The previous prime is 549532128583. The next prime is 549532128731. The reversal of 549532128648 is 846821235945.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 340986 + ... + 1102422.

It is an arithmetic number, because the mean of its divisors is an integer number (42933681630).

Almost surely, 2^549532128648 is an apocalyptic number.

It is an amenable number.

549532128648 is an abundant number, since it is smaller than the sum of its proper divisors (824345683512).

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

549532128648 is a wasteful number, since it uses less digits than its factorization.

549532128648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791517 (or 791513 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The spelling of 549532128648 in words is "five hundred forty-nine billion, five hundred thirty-two million, one hundred twenty-eight thousand, six hundred forty-eight".