3861821736467 has 2 divisors, whose sum is σ = 3861821736468. Its totient is φ = 3861821736466.

The previous prime is 3861821736431. The next prime is 3861821736473. The reversal of 3861821736467 is 7646371281683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3861821736467 - 2¹⁸ = 3861821474323 is a prime.

It is not a weakly prime, because it can be changed into another prime (3861821736667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930910868233 + 1930910868234.

It is an arithmetic number, because the mean of its divisors is an integer number (1930910868234).

Almost surely, 2^{3861821736467} is an apocalyptic number.

3861821736467 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861821736467 is an equidigital number, since it uses as much as digits as its factorization.

3861821736467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48771072, while the sum is 62.

The spelling of 3861821736467 in words is "three trillion, eight hundred sixty-one billion, eight hundred twenty-one million, seven hundred thirty-six thousand, four hundred sixty-seven".