3381586615861 has 2 divisors, whose sum is σ = 3381586615862. Its totient is φ = 3381586615860.

The previous prime is 3381586615843. The next prime is 3381586615873. The reversal of 3381586615861 is 1685166851833.

3381586615861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2439922100625 + 941664515236 = 1562025^2 + 970394^2 .

It is an emirp because it is prime and its reverse (1685166851833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3381586615861 - 2¹¹ = 3381586613813 is a prime.

It is a super-2 number, since 2×3381586615861² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3381586615861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3381586615811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1690793307930 + 1690793307931.

It is an arithmetic number, because the mean of its divisors is an integer number (1690793307931).

Almost surely, 2^{3381586615861} is an apocalyptic number.

It is an amenable number.

3381586615861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3381586615861 is an equidigital number, since it uses as much as digits as its factorization.

3381586615861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24883200, while the sum is 61.

The spelling of 3381586615861 in words is "three trillion, three hundred eighty-one billion, five hundred eighty-six million, six hundred fifteen thousand, eight hundred sixty-one".