549218193846 has 32 divisors (see below), whose sum is σ = 1272552534528. Its totient is φ = 154769901120.

The previous prime is 549218193827. The next prime is 549218193847. The reversal of 549218193846 is 648391812945.

It is a self number, because there is not a number n which added to its sum of digits gives 549218193846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549218193847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89562850 + ... + 89568981.

It is an arithmetic number, because the mean of its divisors is an integer number (39767266704).

Almost surely, 2^549218193846 is an apocalyptic number.

549218193846 is an abundant number, since it is smaller than the sum of its proper divisors (723334340682).

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

549218193846 is a wasteful number, since it uses less digits than its factorization.

549218193846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179131916.

The product of its digits is 14929920, while the sum is 60.

The spelling of 549218193846 in words is "five hundred forty-nine billion, two hundred eighteen million, one hundred ninety-three thousand, eight hundred forty-six".