3984163140817 has 2 divisors, whose sum is σ = 3984163140818. Its totient is φ = 3984163140816.

The previous prime is 3984163140799. The next prime is 3984163140821. The reversal of 3984163140817 is 7180413614893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3593758109841 + 390405030976 = 1895721^2 + 624824^2 .

It is a cyclic number.

It is not a de Polignac number, because 3984163140817 - 2¹⁵ = 3984163108049 is a prime.

It is not a weakly prime, because it can be changed into another prime (3984163140857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992081570408 + 1992081570409.

It is an arithmetic number, because the mean of its divisors is an integer number (1992081570409).

Almost surely, 2^{3984163140817} is an apocalyptic number.

It is an amenable number.

3984163140817 is a deficient number, since it is larger than the sum of its proper divisors (1).

3984163140817 is an equidigital number, since it uses as much as digits as its factorization.

3984163140817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 3984163140817 in words is "three trillion, nine hundred eighty-four billion, one hundred sixty-three million, one hundred forty thousand, eight hundred seventeen".