3864734289887 has 2 divisors, whose sum is σ = 3864734289888. Its totient is φ = 3864734289886.

The previous prime is 3864734289833. The next prime is 3864734289931. The reversal of 3864734289887 is 7889824374683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3864734289887 - 2¹⁴ = 3864734273503 is a prime.

It is a super-2 number, since 2×3864734289887² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3864734289817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932367144943 + 1932367144944.

It is an arithmetic number, because the mean of its divisors is an integer number (1932367144944).

Almost surely, 2^{3864734289887} is an apocalyptic number.

3864734289887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3864734289887 is an equidigital number, since it uses as much as digits as its factorization.

3864734289887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3121348608, while the sum is 77.

The spelling of 3864734289887 in words is "three trillion, eight hundred sixty-four billion, seven hundred thirty-four million, two hundred eighty-nine thousand, eight hundred eighty-seven".