6786932409 has 32 divisors (see below), whose sum is σ = 10191878400. Its totient is φ = 4518831888.

The previous prime is 6786932377. The next prime is 6786932413. The reversal of 6786932409 is 9042396876.

It is a happy number.

It is not a de Polignac number, because 6786932409 - 2⁵ = 6786932377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6786932419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2336452 + ... + 2339354.

It is an arithmetic number, because the mean of its divisors is an integer number (318496200).

Almost surely, 2^6786932409 is an apocalyptic number.

It is an amenable number.

6786932409 is a deficient number, since it is larger than the sum of its proper divisors (3404945991).

6786932409 is an equidigital number, since it uses as much as digits as its factorization.

6786932409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993 (or 3975 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 6786932409 is about 82382.8405009199. The cubic root of 6786932409 is about 1893.3221163670.

The spelling of 6786932409 in words is "six billion, seven hundred eighty-six million, nine hundred thirty-two thousand, four hundred nine".