549138044484 has 24 divisors (see below), whose sum is σ = 1423691226720. Its totient is φ = 183046014792.

The previous prime is 549138044459. The next prime is 549138044509. The reversal of 549138044484 is 484440831945.

549138044484 is a `hidden beast` number, since 5 + 4 + 91 + 38 + 0 + 44 + 484 = 666.

It is an interprime number because it is at equal distance from previous prime (549138044459) and next prime (549138044509).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 549138044484.

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, 2542305654 + ... + 2542305869.

It is an arithmetic number, because the mean of its divisors is an integer number (59320467780).

Almost surely, 2^549138044484 is an apocalyptic number.

549138044484 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

549138044484 is an abundant number, since it is smaller than the sum of its proper divisors (874553182236).

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

549138044484 is a wasteful number, since it uses less digits than its factorization.

549138044484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084611536 (or 5084611528 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 549138044484 in words is "five hundred forty-nine billion, one hundred thirty-eight million, forty-four thousand, four hundred eighty-four".