44891219844 has 192 divisors, whose sum is σ = 122817945600. Its totient is φ = 14163641856.

The previous prime is 44891219843. The next prime is 44891219861.

44891219844 is a `hidden beast` number, since 448 + 9 + 1 + 2 + 198 + 4 + 4 = 666.

44891219844 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (44891219843) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 26896242 + ... + 26897910.

It is an arithmetic number, because the mean of its divisors is an integer number (639676800).

Almost surely, 2^44891219844 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 44891219844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61408972800).

44891219844 is an abundant number, since it is smaller than the sum of its proper divisors (77926725756).

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

44891219844 is a wasteful number, since it uses less digits than its factorization.

44891219844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1891 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 44891219844 in words is "forty-four billion, eight hundred ninety-one million, two hundred nineteen thousand, eight hundred forty-four".