4186838401 has 2 divisors, whose sum is σ = 4186838402. Its totient is φ = 4186838400.

The previous prime is 4186838399. The next prime is 4186838407. The reversal of 4186838401 is 1048386814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2851666801 + 1335171600 = 53401^2 + 36540^2 .

It is a cyclic number.

It is not a de Polignac number, because 4186838401 - 2¹ = 4186838399 is a prime.

Together with 4186838399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4186838407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2093419200 + 2093419201.

It is an arithmetic number, because the mean of its divisors is an integer number (2093419201).

Almost surely, 2^4186838401 is an apocalyptic number.

It is an amenable number.

4186838401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4186838401 is an equidigital number, since it uses as much as digits as its factorization.

4186838401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 4186838401 is about 64705.7833659403. The cubic root of 4186838401 is about 1611.7415411563.

The spelling of 4186838401 in words is "four billion, one hundred eighty-six million, eight hundred thirty-eight thousand, four hundred one".