6812556379 has 2 divisors, whose sum is σ = 6812556380. Its totient is φ = 6812556378.

The previous prime is 6812556371. The next prime is 6812556407. The reversal of 6812556379 is 9736552186.

6812556379 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6812556379 - 2³ = 6812556371 is a prime.

It is not a weakly prime, because it can be changed into another prime (6812556371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406278189 + 3406278190.

It is an arithmetic number, because the mean of its divisors is an integer number (3406278190).

Almost surely, 2^6812556379 is an apocalyptic number.

6812556379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6812556379 is an equidigital number, since it uses as much as digits as its factorization.

6812556379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 52.

The square root of 6812556379 is about 82538.2116295234. The cubic root of 6812556379 is about 1895.7018611837.

The spelling of 6812556379 in words is "six billion, eight hundred twelve million, five hundred fifty-six thousand, three hundred seventy-nine".