549280647944 has 32 divisors (see below), whose sum is σ = 1186297927680. Its totient is φ = 233552398464.

The previous prime is 549280647943. The next prime is 549280647973. The reversal of 549280647944 is 449746082945.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (549280647941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38609357 + ... + 38623580.

It is an arithmetic number, because the mean of its divisors is an integer number (37071810240).

Almost surely, 2^549280647944 is an apocalyptic number.

It is an amenable number.

549280647944 is an abundant number, since it is smaller than the sum of its proper divisors (637017279736).

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

549280647944 is a wasteful number, since it uses less digits than its factorization.

549280647944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77233077 (or 77233073 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 549280647944 in words is "five hundred forty-nine billion, two hundred eighty million, six hundred forty-seven thousand, nine hundred forty-four".