3867324727649 has 2 divisors, whose sum is σ = 3867324727650. Its totient is φ = 3867324727648.

The previous prime is 3867324727573. The next prime is 3867324727663. The reversal of 3867324727649 is 9467274237683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3828158338624 + 39166389025 = 1956568^2 + 197905^2 .

It is a cyclic number.

It is not a de Polignac number, because 3867324727649 - 2⁴⁰ = 2767813099873 is a prime.

It is not a weakly prime, because it can be changed into another prime (3867324727549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933662363824 + 1933662363825.

It is an arithmetic number, because the mean of its divisors is an integer number (1933662363825).

Almost surely, 2^{3867324727649} is an apocalyptic number.

It is an amenable number.

3867324727649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867324727649 is an equidigital number, since it uses as much as digits as its factorization.

3867324727649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512096256, while the sum is 68.

The spelling of 3867324727649 in words is "three trillion, eight hundred sixty-seven billion, three hundred twenty-four million, seven hundred twenty-seven thousand, six hundred forty-nine".