549778246212 has 48 divisors (see below), whose sum is σ = 1462758417792. Its totient is φ = 159211799040.

The previous prime is 549778246201. The next prime is 549778246217. The reversal of 549778246212 is 212642877945.

It is a super-2 number, since 2×549778246212² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (549778246217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103650864 + ... + 103656167.

It is an arithmetic number, because the mean of its divisors is an integer number (30474133704).

Almost surely, 2^549778246212 is an apocalyptic number.

549778246212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

549778246212 is an abundant number, since it is smaller than the sum of its proper divisors (912980171580).

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

549778246212 is a wasteful number, since it uses less digits than its factorization.

549778246212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207307068 (or 207307066 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 549778246212 in words is "five hundred forty-nine billion, seven hundred seventy-eight million, two hundred forty-six thousand, two hundred twelve".