3861622841 has 2 divisors, whose sum is σ = 3861622842. Its totient is φ = 3861622840.

The previous prime is 3861622837. The next prime is 3861622859. The reversal of 3861622841 is 1482261683.

3861622841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2919132841 + 942490000 = 54029^2 + 30700^2 .

It is a cyclic number.

It is not a de Polignac number, because 3861622841 - 2² = 3861622837 is a prime.

It is a super-2 number, since 2×3861622841² = 29824261932265822562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3861627841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930811420 + 1930811421.

It is an arithmetic number, because the mean of its divisors is an integer number (1930811421).

Almost surely, 2^3861622841 is an apocalyptic number.

It is an amenable number.

3861622841 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861622841 is an equidigital number, since it uses as much as digits as its factorization.

3861622841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 3861622841 is about 62141.9571706589. The cubic root of 3861622841 is about 1568.8808123041.

The spelling of 3861622841 in words is "three billion, eight hundred sixty-one million, six hundred twenty-two thousand, eight hundred forty-one".