3871000168513 has 2 divisors, whose sum is σ = 3871000168514. Its totient is φ = 3871000168512.

The previous prime is 3871000168351. The next prime is 3871000168597. The reversal of 3871000168513 is 3158610001783.

Together with previous prime (3871000168351) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2384532021249 + 1486468147264 = 1544193^2 + 1219208^2 .

It is a cyclic number.

It is not a de Polignac number, because 3871000168513 - 2¹⁷ = 3871000037441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3871000168513.

It is not a weakly prime, because it can be changed into another prime (3871000168313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935500084256 + 1935500084257.

It is an arithmetic number, because the mean of its divisors is an integer number (1935500084257).

Almost surely, 2^{3871000168513} is an apocalyptic number.

It is an amenable number.

3871000168513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3871000168513 is an equidigital number, since it uses as much as digits as its factorization.

3871000168513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 3871000168513 in words is "three trillion, eight hundred seventy-one billion, one hundred sixty-eight thousand, five hundred thirteen".