3818401109 has 2 divisors, whose sum is σ = 3818401110. Its totient is φ = 3818401108.

The previous prime is 3818401091. The next prime is 3818401121. The reversal of 3818401109 is 9011048183.

3818401109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (3818401091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3214323025 + 604078084 = 56695^2 + 24578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3818401109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3818401199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909200554 + 1909200555.

It is an arithmetic number, because the mean of its divisors is an integer number (1909200555).

Almost surely, 2^3818401109 is an apocalyptic number.

It is an amenable number.

3818401109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818401109 is an equidigital number, since it uses as much as digits as its factorization.

3818401109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 3818401109 is about 61793.2124832493. The cubic root of 3818401109 is about 1563.0055345028.

The spelling of 3818401109 in words is "three billion, eight hundred eighteen million, four hundred one thousand, one hundred nine".