3861821474323 has 2 divisors, whose sum is σ = 3861821474324. Its totient is φ = 3861821474322.

The previous prime is 3861821474297. The next prime is 3861821474327. The reversal of 3861821474323 is 3234741281683.

3861821474323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3861821474323 - 2¹⁷ = 3861821343251 is a prime.

It is not a weakly prime, because it can be changed into another prime (3861821474327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930910737161 + 1930910737162.

It is an arithmetic number, because the mean of its divisors is an integer number (1930910737162).

Almost surely, 2^{3861821474323} is an apocalyptic number.

3861821474323 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861821474323 is an equidigital number, since it uses as much as digits as its factorization.

3861821474323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 52.

The spelling of 3861821474323 in words is "three trillion, eight hundred sixty-one billion, eight hundred twenty-one million, four hundred seventy-four thousand, three hundred twenty-three".