3865854876419 has 2 divisors, whose sum is σ = 3865854876420. Its totient is φ = 3865854876418.

The previous prime is 3865854876347. The next prime is 3865854876421. The reversal of 3865854876419 is 9146784585683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3865854876419 - 2³⁶ = 3797135399683 is a prime.

It is a super-2 number, since 2×3865854876419² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 3865854876421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3865854876449) 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, 1932927438209 + 1932927438210.

It is an arithmetic number, because the mean of its divisors is an integer number (1932927438210).

Almost surely, 2^{3865854876419} is an apocalyptic number.

3865854876419 is a deficient number, since it is larger than the sum of its proper divisors (1).

3865854876419 is an equidigital number, since it uses as much as digits as its factorization.

3865854876419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1393459200, while the sum is 74.

The spelling of 3865854876419 in words is "three trillion, eight hundred sixty-five billion, eight hundred fifty-four million, eight hundred seventy-six thousand, four hundred nineteen".