3867121217147 has 2 divisors, whose sum is σ = 3867121217148. Its totient is φ = 3867121217146.

The previous prime is 3867121217081. The next prime is 3867121217243. The reversal of 3867121217147 is 7417121217683.

3867121217147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3867121217147 - 2¹⁶ = 3867121151611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3867121217095 and 3867121217104.

It is not a weakly prime, because it can be changed into another prime (3867121217347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933560608573 + 1933560608574.

It is an arithmetic number, because the mean of its divisors is an integer number (1933560608574).

Almost surely, 2^{3867121217147} is an apocalyptic number.

3867121217147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867121217147 is an equidigital number, since it uses as much as digits as its factorization.

3867121217147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 50.

The spelling of 3867121217147 in words is "three trillion, eight hundred sixty-seven billion, one hundred twenty-one million, two hundred seventeen thousand, one hundred forty-seven".