3716321772169 has 2 divisors, whose sum is σ = 3716321772170. Its totient is φ = 3716321772168.

The previous prime is 3716321772103. The next prime is 3716321772197. The reversal of 3716321772169 is 9612771236173.

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., 3586811756544 + 129510015625 = 1893888^2 + 359875^2 .

It is a cyclic number.

It is not a de Polignac number, because 3716321772169 - 2²¹ = 3716319675017 is a prime.

It is a super-2 number, since 2×3716321772169² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3716321772869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1858160886084 + 1858160886085.

It is an arithmetic number, because the mean of its divisors is an integer number (1858160886085).

Almost surely, 2^{3716321772169} is an apocalyptic number.

It is an amenable number.

3716321772169 is a deficient number, since it is larger than the sum of its proper divisors (1).

3716321772169 is an equidigital number, since it uses as much as digits as its factorization.

3716321772169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000752, while the sum is 55.

The spelling of 3716321772169 in words is "three trillion, seven hundred sixteen billion, three hundred twenty-one million, seven hundred seventy-two thousand, one hundred sixty-nine".