54989784447 has 8 divisors (see below), whose sum is σ = 78959690544. Its totient is φ = 33839867328.

The previous prime is 54989784389. The next prime is 54989784463. The reversal of 54989784447 is 74448798945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54989784447 - 2¹⁹ = 54989260159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54989784847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704997198 + ... + 704997275.

It is an arithmetic number, because the mean of its divisors is an integer number (9869961318).

Almost surely, 2^54989784447 is an apocalyptic number.

54989784447 is a deficient number, since it is larger than the sum of its proper divisors (23969906097).

54989784447 is a wasteful number, since it uses less digits than its factorization.

54989784447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409994489.

The product of its digits is 325140480, while the sum is 69.

The spelling of 54989784447 in words is "fifty-four billion, nine hundred eighty-nine million, seven hundred eighty-four thousand, four hundred forty-seven".