544444444444446 has 320 divisors, whose sum is σ = 1580620370757120. Its totient is φ = 136023189477120.

The previous prime is 544444444444423. The next prime is 544444444444477. The reversal of 544444444444446 is 644444444444445.

544444444444446 is a `hidden beast` number, since 544 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 44 + 46 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4756286905 + ... + 4756401371.

It is an arithmetic number, because the mean of its divisors is an integer number (4939438658616).

Almost surely, 2^{544444444444446} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544444444444446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790310185378560).

544444444444446 is an abundant number, since it is smaller than the sum of its proper divisors (1036175926312674).

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

544444444444446 is a wasteful number, since it uses less digits than its factorization.

544444444444446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131501 (or 131492 counting only the distinct ones).

The product of its digits is 2013265920, while the sum is 63.

Subtracting 544444444444446 from its reverse (644444444444445), we obtain a palindrome (99999999999999).

The spelling of 544444444444446 in words is "five hundred forty-four trillion, four hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-six".