6809433856 has 36 divisors (see below), whose sum is σ = 14060982600. Its totient is φ = 3287309312.

The previous prime is 6809433809. The next prime is 6809433857. The reversal of 6809433856 is 6583349086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809433857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451186 + ... + 466033.

It is an arithmetic number, because the mean of its divisors is an integer number (390582850).

Almost surely, 2^6809433856 is an apocalyptic number.

It is an amenable number.

6809433856 is an abundant number, since it is smaller than the sum of its proper divisors (7251548744).

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

6809433856 is an equidigital number, since it uses as much as digits as its factorization.

6809433856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917264 (or 917250 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The square root of 6809433856 is about 82519.2938408952. The cubic root of 6809433856 is about 1895.4121864056.

The spelling of 6809433856 in words is "six billion, eight hundred nine million, four hundred thirty-three thousand, eight hundred fifty-six".