54444444444439 has 24 divisors (see below), whose sum is σ = 65345116080960. Its totient is φ = 45206591661504.

The previous prime is 54444444444433. The next prime is 54444444444499. The reversal of 54444444444439 is 93444444444445.

It is a happy number.

It is not a de Polignac number, because 54444444444439 - 2³ = 54444444444431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54444444444431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132480664 + ... + 132890989.

It is an arithmetic number, because the mean of its divisors is an integer number (2722713170040).

Almost surely, 2^{54444444444439} is an apocalyptic number.

54444444444439 is a deficient number, since it is larger than the sum of its proper divisors (10900671636521).

54444444444439 is a wasteful number, since it uses less digits than its factorization.

54444444444439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265371799 (or 265371792 counting only the distinct ones).

The product of its digits is 566231040, while the sum is 61.

It can be divided in two parts, 5 and 4444444444439, that added together give a palindrome (4444444444444).

The spelling of 54444444444439 in words is "fifty-four trillion, four hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred thirty-nine".