6849577668 has 12 divisors (see below), whose sum is σ = 15982347920. Its totient is φ = 2283192552.

The previous prime is 6849577649. The next prime is 6849577673. The reversal of 6849577668 is 8667759486.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6849577599 and 6849577608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285399058 + ... + 285399081.

Almost surely, 2^6849577668 is an apocalyptic number.

It is an amenable number.

6849577668 is an abundant number, since it is smaller than the sum of its proper divisors (9132770252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6849577668 is a wasteful number, since it uses less digits than its factorization.

6849577668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570798146 (or 570798144 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 66.

The square root of 6849577668 is about 82762.1753459876. The cubic root of 6849577668 is about 1899.1295798857.

The spelling of 6849577668 in words is "six billion, eight hundred forty-nine million, five hundred seventy-seven thousand, six hundred sixty-eight".