3856473008489 has 2 divisors, whose sum is σ = 3856473008490. Its totient is φ = 3856473008488.

The previous prime is 3856473008467. The next prime is 3856473008501. The reversal of 3856473008489 is 9848003746583.

3856473008489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2542136870464 + 1314336138025 = 1594408^2 + 1146445^2 .

It is a cyclic number.

It is not a de Polignac number, because 3856473008489 - 2¹⁶ = 3856472942953 is a prime.

It is not a weakly prime, because it can be changed into another prime (3856473008459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928236504244 + 1928236504245.

It is an arithmetic number, because the mean of its divisors is an integer number (1928236504245).

Almost surely, 2^{3856473008489} is an apocalyptic number.

It is an amenable number.

3856473008489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856473008489 is an equidigital number, since it uses as much as digits as its factorization.

3856473008489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 3856473008489 in words is "three trillion, eight hundred fifty-six billion, four hundred seventy-three million, eight thousand, four hundred eighty-nine".