6813798401 has 2 divisors, whose sum is σ = 6813798402. Its totient is φ = 6813798400.

The previous prime is 6813798359. The next prime is 6813798403. The reversal of 6813798401 is 1048973186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6300549376 + 513249025 = 79376^2 + 22655^2 .

It is a cyclic number.

It is not a de Polignac number, because 6813798401 - 2⁶ = 6813798337 is a prime.

Together with 6813798403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6813798403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406899200 + 3406899201.

It is an arithmetic number, because the mean of its divisors is an integer number (3406899201).

Almost surely, 2^6813798401 is an apocalyptic number.

It is an amenable number.

6813798401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6813798401 is an equidigital number, since it uses as much as digits as its factorization.

6813798401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 6813798401 is about 82545.7352078228. The cubic root of 6813798401 is about 1895.8170582901.

The spelling of 6813798401 in words is "six billion, eight hundred thirteen million, seven hundred ninety-eight thousand, four hundred one".