549347384520 has 192 divisors, whose sum is σ = 1954877034240. Its totient is φ = 132683443200.

The previous prime is 549347384513. The next prime is 549347384609. The reversal of 549347384520 is 25483743945.

549347384520 is a `hidden beast` number, since 5 + 4 + 9 + 34 + 7 + 3 + 84 + 520 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 817212 + ... + 1329108.

It is an arithmetic number, because the mean of its divisors is an integer number (10181651220).

Almost surely, 2^549347384520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549347384520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977438517120).

549347384520 is an abundant number, since it is smaller than the sum of its proper divisors (1405529649720).

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

549347384520 is a wasteful number, since it uses less digits than its factorization.

549347384520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512196 (or 512189 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 549347384520 in words is "five hundred forty-nine billion, three hundred forty-seven million, three hundred eighty-four thousand, five hundred twenty".