54981851821206 has 16 divisors (see below), whose sum is σ = 116432156798064. Its totient is φ = 17249208414464.

The previous prime is 54981851821123. The next prime is 54981851821249. The reversal of 54981851821206 is 60212815818945.

It is a happy number.

54981851821206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 54981851821206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269518881375 + ... + 269518881578.

It is an arithmetic number, because the mean of its divisors is an integer number (7277009799879).

Almost surely, 2^{54981851821206} is an apocalyptic number.

54981851821206 is an abundant number, since it is smaller than the sum of its proper divisors (61450304976858).

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

54981851821206 is a wasteful number, since it uses less digits than its factorization.

54981851821206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539037762975.

The product of its (nonzero) digits is 11059200, while the sum is 60.

The spelling of 54981851821206 in words is "fifty-four trillion, nine hundred eighty-one billion, eight hundred fifty-one million, eight hundred twenty-one thousand, two hundred six".