6843672621 has 12 divisors (see below), whose sum is σ = 10004406048. Its totient is φ = 4507478664.

The previous prime is 6843672617. The next prime is 6843672659. The reversal of 6843672621 is 1262763486.

It is not a de Polignac number, because 6843672621 - 2² = 6843672617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6843672601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4580025 + ... + 4581518.

It is an arithmetic number, because the mean of its divisors is an integer number (833700504).

Almost surely, 2^6843672621 is an apocalyptic number.

It is an amenable number.

6843672621 is a deficient number, since it is larger than the sum of its proper divisors (3160733427).

6843672621 is a wasteful number, since it uses less digits than its factorization.

6843672621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161632 (or 9161629 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 6843672621 is about 82726.4928605099. The cubic root of 6843672621 is about 1898.5836740313.

The spelling of 6843672621 in words is "six billion, eight hundred forty-three million, six hundred seventy-two thousand, six hundred twenty-one".