549118197888 has 1024 divisors, whose sum is σ = 1832181120000. Its totient is φ = 143879307264.

The previous prime is 549118197883. The next prime is 549118197919. The reversal of 549118197888 is 888791811945.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (549118197883) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5037781578 + ... + 5037781686.

It is an arithmetic number, because the mean of its divisors is an integer number (1789239375).

Almost surely, 2^549118197888 is an apocalyptic number.

549118197888 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549118197888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916090560000).

549118197888 is an abundant number, since it is smaller than the sum of its proper divisors (1283062922112).

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

549118197888 is a wasteful number, since it uses less digits than its factorization.

549118197888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 285 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 69.

The spelling of 549118197888 in words is "five hundred forty-nine billion, one hundred eighteen million, one hundred ninety-seven thousand, eight hundred eighty-eight".