3867800656207 has 2 divisors, whose sum is σ = 3867800656208. Its totient is φ = 3867800656206.

The previous prime is 3867800656189. The next prime is 3867800656217. The reversal of 3867800656207 is 7026560087683.

3867800656207 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3867800656207 - 2²⁷ = 3867666438479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3867800656217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933900328103 + 1933900328104.

It is an arithmetic number, because the mean of its divisors is an integer number (1933900328104).

Almost surely, 2^{3867800656207} is an apocalyptic number.

3867800656207 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867800656207 is an equidigital number, since it uses as much as digits as its factorization.

3867800656207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 3867800656207 in words is "three trillion, eight hundred sixty-seven billion, eight hundred million, six hundred fifty-six thousand, two hundred seven".