3864485871551 has 2 divisors, whose sum is σ = 3864485871552. Its totient is φ = 3864485871550.

The previous prime is 3864485871539. The next prime is 3864485871553. The reversal of 3864485871551 is 1551785844683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3864485871551 - 2¹⁰ = 3864485870527 is a prime.

It is a super-2 number, since 2×3864485871551² (a number of 26 digits) contains 22 as substring.

Together with 3864485871553, 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 (3864485871553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932242935775 + 1932242935776.

It is an arithmetic number, because the mean of its divisors is an integer number (1932242935776).

Almost surely, 2^{3864485871551} is an apocalyptic number.

3864485871551 is a deficient number, since it is larger than the sum of its proper divisors (1).

3864485871551 is an equidigital number, since it uses as much as digits as its factorization.

3864485871551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024000, while the sum is 65.

The spelling of 3864485871551 in words is "three trillion, eight hundred sixty-four billion, four hundred eighty-five million, eight hundred seventy-one thousand, five hundred fifty-one".