6685244471 has 4 divisors (see below), whose sum is σ = 6865926792. Its totient is φ = 6504562152.

The previous prime is 6685244437. The next prime is 6685244473. The reversal of 6685244471 is 1744425866.

It is a happy number.

6685244471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1744425866 = 2 ⋅872212933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6685244471 is a prime.

It is a super-3 number, since 3×6685244471³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685244473) 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 3 ways as a sum of consecutive naturals, for example, 90341105 + ... + 90341178.

It is an arithmetic number, because the mean of its divisors is an integer number (1716481698).

Almost surely, 2^6685244471 is an apocalyptic number.

6685244471 is a deficient number, since it is larger than the sum of its proper divisors (180682321).

6685244471 is a wasteful number, since it uses less digits than its factorization.

6685244471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180682320.

The product of its digits is 1290240, while the sum is 47.

The square root of 6685244471 is about 81763.3442992641. The cubic root of 6685244471 is about 1883.8186746715.

The spelling of 6685244471 in words is "six billion, six hundred eighty-five million, two hundred forty-four thousand, four hundred seventy-one".