6807636321 has 4 divisors (see below), whose sum is σ = 9076848432. Its totient is φ = 4538424212.

The previous prime is 6807636317. The next prime is 6807636323. The reversal of 6807636321 is 1236367086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6807636321 - 2² = 6807636317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6807636323) 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, 1134606051 + ... + 1134606056.

It is an arithmetic number, because the mean of its divisors is an integer number (2269212108).

Almost surely, 2^6807636321 is an apocalyptic number.

It is an amenable number.

6807636321 is a deficient number, since it is larger than the sum of its proper divisors (2269212111).

6807636321 is a wasteful number, since it uses less digits than its factorization.

6807636321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269212110.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 6807636321 is about 82508.4015176636. The cubic root of 6807636321 is about 1895.2453898869.

The spelling of 6807636321 in words is "six billion, eight hundred seven million, six hundred thirty-six thousand, three hundred twenty-one".