3847736667773 has 2 divisors, whose sum is σ = 3847736667774. Its totient is φ = 3847736667772.

The previous prime is 3847736667769. The next prime is 3847736667793. The reversal of 3847736667773 is 3777666377483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2830829805049 + 1016906862724 = 1682507^2 + 1008418^2 .

It is a cyclic number.

It is not a de Polignac number, because 3847736667773 - 2² = 3847736667769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3847736667773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3847736667793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923868333886 + 1923868333887.

It is an arithmetic number, because the mean of its divisors is an integer number (1923868333887).

Almost surely, 2^{3847736667773} is an apocalyptic number.

It is an amenable number.

3847736667773 is a deficient number, since it is larger than the sum of its proper divisors (1).

3847736667773 is an equidigital number, since it uses as much as digits as its factorization.

3847736667773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136589568, while the sum is 74.

The spelling of 3847736667773 in words is "three trillion, eight hundred forty-seven billion, seven hundred thirty-six million, six hundred sixty-seven thousand, seven hundred seventy-three".