5578447789 has 8 divisors (see below), whose sum is σ = 5696151480. Its totient is φ = 5461860096.

The previous prime is 5578447729. The next prime is 5578447811. The reversal of 5578447789 is 9877448755.

It can be written as a sum of positive squares in 4 ways, for example, as 2587451689 + 2990996100 = 50867^2 + 54690^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5578447789 - 2¹³ = 5578439597 is a prime.

It is a super-2 number, since 2×5578447789² = 62238159469197977042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5578447789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5578447729) 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, 268894 + ... + 288895.

It is an arithmetic number, because the mean of its divisors is an integer number (712018935).

Almost surely, 2^5578447789 is an apocalyptic number.

It is an amenable number.

5578447789 is a deficient number, since it is larger than the sum of its proper divisors (117703691).

5578447789 is a wasteful number, since it uses less digits than its factorization.

5578447789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557999.

The product of its digits is 79027200, while the sum is 64.

The square root of 5578447789 is about 74689.0071496469. The cubic root of 5578447789 is about 1773.5269443911.

The spelling of 5578447789 in words is "five billion, five hundred seventy-eight million, four hundred forty-seven thousand, seven hundred eighty-nine".