54444844920 has 128 divisors (see below), whose sum is σ = 168691968000. Its totient is φ = 14042903040.

The previous prime is 54444844897. The next prime is 54444844973. The reversal of 54444844920 is 2944844445.

It is a super-2 number, since 2×54444844920² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54444844920.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 12902571 + ... + 12906789.

It is an arithmetic number, because the mean of its divisors is an integer number (1317906000).

Almost surely, 2^54444844920 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 54444844920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84345984000).

54444844920 is an abundant number, since it is smaller than the sum of its proper divisors (114247123080).

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

54444844920 is a wasteful number, since it uses less digits than its factorization.

54444844920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733 (or 7729 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 48.

The spelling of 54444844920 in words is "fifty-four billion, four hundred forty-four million, eight hundred forty-four thousand, nine hundred twenty".