5447985965 has 32 divisors (see below), whose sum is σ = 7207418880. Its totient is φ = 3939384064.

The previous prime is 5447985943. The next prime is 5447985967. The reversal of 5447985965 is 5695897445.

It is not a de Polignac number, because 5447985965 - 2²⁰ = 5446937389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5447985898 and 5447985907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5447985967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139367 + ... + 174123.

It is an arithmetic number, because the mean of its divisors is an integer number (225231840).

Almost surely, 2^5447985965 is an apocalyptic number.

It is an amenable number.

5447985965 is a deficient number, since it is larger than the sum of its proper divisors (1759432915).

5447985965 is a wasteful number, since it uses less digits than its factorization.

5447985965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34861.

The product of its digits is 54432000, while the sum is 62.

The square root of 5447985965 is about 73810.4732744615. The cubic root of 5447985965 is about 1759.5920590557.

The spelling of 5447985965 in words is "five billion, four hundred forty-seven million, nine hundred eighty-five thousand, nine hundred sixty-five".