5649785447 has 4 divisors (see below), whose sum is σ = 5769993696. Its totient is φ = 5529577200.

The previous prime is 5649785443. The next prime is 5649785459. The reversal of 5649785447 is 7445879465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5649785447 - 2² = 5649785443 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 (5649785443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60104054 + ... + 60104147.

It is an arithmetic number, because the mean of its divisors is an integer number (1442498424).

Almost surely, 2^5649785447 is an apocalyptic number.

5649785447 is a deficient number, since it is larger than the sum of its proper divisors (120208249).

5649785447 is a wasteful number, since it uses less digits than its factorization.

5649785447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120208248.

The product of its digits is 33868800, while the sum is 59.

The square root of 5649785447 is about 75165.0546929888. The cubic root of 5649785447 is about 1781.0549491694.

The spelling of 5649785447 in words is "five billion, six hundred forty-nine million, seven hundred eighty-five thousand, four hundred forty-seven".