6784466857 has 48 divisors (see below), whose sum is σ = 8666317440. Its totient is φ = 5193103104.

The previous prime is 6784466827. The next prime is 6784466863. The reversal of 6784466857 is 7586644876.

It is a happy number.

It is not a de Polignac number, because 6784466857 - 2¹¹ = 6784464809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6784466795 and 6784466804.

It is not an unprimeable number, because it can be changed into a prime (6784466807) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3150093 + ... + 3152245.

It is an arithmetic number, because the mean of its divisors is an integer number (180548280).

Almost surely, 2^6784466857 is an apocalyptic number.

It is an amenable number.

6784466857 is a deficient number, since it is larger than the sum of its proper divisors (1881850583).

6784466857 is a wasteful number, since it uses less digits than its factorization.

6784466857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270 (or 2251 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 61.

The square root of 6784466857 is about 82367.8751516633. The cubic root of 6784466857 is about 1893.0928203593.

The spelling of 6784466857 in words is "six billion, seven hundred eighty-four million, four hundred sixty-six thousand, eight hundred fifty-seven".