6809749632 has 96 divisors (see below), whose sum is σ = 22395185280. Its totient is φ = 1945640448.

The previous prime is 6809749631. The next prime is 6809749643. The reversal of 6809749632 is 2369479086.

It is a happy number.

6809749632 is a `hidden beast` number, since 68 + 0 + 97 + 496 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (6809749631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414168 + ... + 430295.

It is an arithmetic number, because the mean of its divisors is an integer number (233283180).

Almost surely, 2^6809749632 is an apocalyptic number.

It is an amenable number.

6809749632 is an abundant number, since it is smaller than the sum of its proper divisors (15585435648).

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

6809749632 is a wasteful number, since it uses less digits than its factorization.

6809749632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844490 (or 844475 counting only the distinct ones).

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

The square root of 6809749632 is about 82521.2071651888. The cubic root of 6809749632 is about 1895.4414847996.

The spelling of 6809749632 in words is "six billion, eight hundred nine million, seven hundred forty-nine thousand, six hundred thirty-two".