549618846768 has 160 divisors (see below), whose sum is σ = 1600697548800. Its totient is φ = 180534182400.

The previous prime is 549618846761. The next prime is 549618846781. The reversal of 549618846768 is 867648816945.

549618846768 is a `hidden beast` number, since 5 + 4 + 96 + 18 + 8 + 467 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 549618846696 and 549618846705.

It is not an unprimeable number, because it can be changed into a prime (549618846761) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 17765233 + ... + 17796143.

It is an arithmetic number, because the mean of its divisors is an integer number (10004359680).

Almost surely, 2^549618846768 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 549618846768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800348774400).

549618846768 is an abundant number, since it is smaller than the sum of its proper divisors (1051078702032).

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

549618846768 is a wasteful number, since it uses less digits than its factorization.

549618846768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31528 (or 31516 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 72.

The spelling of 549618846768 in words is "five hundred forty-nine billion, six hundred eighteen million, eight hundred forty-six thousand, seven hundred sixty-eight".