549931519872 has 96 divisors (see below), whose sum is σ = 1808554578480. Its totient is φ = 157123289088.

The previous prime is 549931519829. The next prime is 549931519873. The reversal of 549931519872 is 278915139945.

549931519872 is a `hidden beast` number, since 5 + 4 + 9 + 9 + 31 + 519 + 87 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549931519873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34089873 + ... + 34106000.

Almost surely, 2^549931519872 is an apocalyptic number.

It is an amenable number.

549931519872 is an abundant number, since it is smaller than the sum of its proper divisors (1258623058608).

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

549931519872 is a wasteful number, since it uses less digits than its factorization.

549931519872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68195900 (or 68195885 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 63.

The spelling of 549931519872 in words is "five hundred forty-nine billion, nine hundred thirty-one million, five hundred nineteen thousand, eight hundred seventy-two".