3838192527821 has 2 divisors, whose sum is σ = 3838192527822. Its totient is φ = 3838192527820.

The previous prime is 3838192527811. The next prime is 3838192527823. The reversal of 3838192527821 is 1287252918383.

3838192527821 = 1385314² + 1385315².

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1919097649225 + 1919094878596 = 1385315^2 + 1385314^2 .

It is a cyclic number.

It is not a de Polignac number, because 3838192527821 - 2²² = 3838188333517 is a prime.

Together with 3838192527823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3838192527823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1919096263910 + 1919096263911.

It is an arithmetic number, because the mean of its divisors is an integer number (1919096263911).

Almost surely, 2^{3838192527821} is an apocalyptic number.

3838192527821 is the 1385315-th centered square number.

It is an amenable number.

3838192527821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3838192527821 is an equidigital number, since it uses as much as digits as its factorization.

3838192527821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160, while the sum is 59.

The spelling of 3838192527821 in words is "three trillion, eight hundred thirty-eight billion, one hundred ninety-two million, five hundred twenty-seven thousand, eight hundred twenty-one".