5493644985 has 16 divisors (see below), whose sum is σ = 8809076736. Its totient is φ = 2923529088.

The previous prime is 5493644983. The next prime is 5493645007. The reversal of 5493644985 is 5894463945.

It is not a de Polignac number, because 5493644985 - 2¹ = 5493644983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5493644983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393849 + ... + 407558.

It is an arithmetic number, because the mean of its divisors is an integer number (550567296).

Almost surely, 2^5493644985 is an apocalyptic number.

It is an amenable number.

5493644985 is a deficient number, since it is larger than the sum of its proper divisors (3315431751).

5493644985 is a wasteful number, since it uses less digits than its factorization.

5493644985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801872.

The product of its digits is 18662400, while the sum is 57.

The square root of 5493644985 is about 74119.1269848748. The cubic root of 5493644985 is about 1764.4940445348.

The spelling of 5493644985 in words is "five billion, four hundred ninety-three million, six hundred forty-four thousand, nine hundred eighty-five".