3798987729617 has 2 divisors, whose sum is σ = 3798987729618. Its totient is φ = 3798987729616.

The previous prime is 3798987729577. The next prime is 3798987729629. The reversal of 3798987729617 is 7169277898973.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2906748796561 + 892238933056 = 1704919^2 + 944584^2 .

It is a cyclic number.

It is not a de Polignac number, because 3798987729617 - 2³⁰ = 3797913987793 is a prime.

It is not a weakly prime, because it can be changed into another prime (3798987729217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1899493864808 + 1899493864809.

It is an arithmetic number, because the mean of its divisors is an integer number (1899493864809).

Almost surely, 2^{3798987729617} is an apocalyptic number.

It is an amenable number.

3798987729617 is a deficient number, since it is larger than the sum of its proper divisors (1).

3798987729617 is an equidigital number, since it uses as much as digits as its factorization.

3798987729617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032758016, while the sum is 83.

The spelling of 3798987729617 in words is "three trillion, seven hundred ninety-eight billion, nine hundred eighty-seven million, seven hundred twenty-nine thousand, six hundred seventeen".