3861622969 has 2 divisors, whose sum is σ = 3861622970. Its totient is φ = 3861622968.

The previous prime is 3861622943. The next prime is 3861622979. The reversal of 3861622969 is 9692261683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2448765225 + 1412857744 = 49485^2 + 37588^2 .

It is a cyclic number.

It is not a de Polignac number, because 3861622969 - 2⁷ = 3861622841 is a prime.

It is a super-2 number, since 2×3861622969² = 29824263909416749922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3861622979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930811484 + 1930811485.

It is an arithmetic number, because the mean of its divisors is an integer number (1930811485).

Almost surely, 2^3861622969 is an apocalyptic number.

It is an amenable number.

3861622969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861622969 is an equidigital number, since it uses as much as digits as its factorization.

3861622969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 52.

The square root of 3861622969 is about 62141.9582005588. The cubic root of 3861622969 is about 1568.8808296385.

The spelling of 3861622969 in words is "three billion, eight hundred sixty-one million, six hundred twenty-two thousand, nine hundred sixty-nine".