3864661753871 has 2 divisors, whose sum is σ = 3864661753872. Its totient is φ = 3864661753870.

The previous prime is 3864661753867. The next prime is 3864661753873. The reversal of 3864661753871 is 1783571664683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3864661753871 - 2² = 3864661753867 is a prime.

It is a super-2 number, since 2×3864661753871² (a number of 26 digits) contains 22 as substring.

Together with 3864661753873, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3864661753798 and 3864661753807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3864661753873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932330876935 + 1932330876936.

It is an arithmetic number, because the mean of its divisors is an integer number (1932330876936).

Almost surely, 2^{3864661753871} is an apocalyptic number.

3864661753871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3864661753871 is an equidigital number, since it uses as much as digits as its factorization.

3864661753871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121927680, while the sum is 65.

The spelling of 3864661753871 in words is "three trillion, eight hundred sixty-four billion, six hundred sixty-one million, seven hundred fifty-three thousand, eight hundred seventy-one".