549113499648 has 780 divisors, whose sum is σ = 1929812050320. Its totient is φ = 155760869376.

The previous prime is 549113499629. The next prime is 549113499707. The reversal of 549113499648 is 846994311945.

549113499648 is a `hidden beast` number, since 5 + 4 + 91 + 13 + 499 + 6 + 48 = 666.

It is a super-2 number, since 2×549113499648² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3950456763 + ... + 3950456901.

Almost surely, 2^549113499648 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 549113499648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964906025160).

549113499648 is an abundant number, since it is smaller than the sum of its proper divisors (1380698550672).

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

549113499648 is an frugal number, since it uses more digits than its factorization.

549113499648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 151 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 549113499648 in words is "five hundred forty-nine billion, one hundred thirteen million, four hundred ninety-nine thousand, six hundred forty-eight".