3820216348969 has 2 divisors, whose sum is σ = 3820216348970. Its totient is φ = 3820216348968.

The previous prime is 3820216348967. The next prime is 3820216348979. The reversal of 3820216348969 is 9698436120283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1942644988944 + 1877571360025 = 1393788^2 + 1370245^2 .

It is a cyclic number.

It is not a de Polignac number, because 3820216348969 - 2¹ = 3820216348967 is a prime.

It is a super-2 number, since 2×3820216348969² (a number of 26 digits) contains 22 as substring.

Together with 3820216348967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3820216348967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1910108174484 + 1910108174485.

It is an arithmetic number, because the mean of its divisors is an integer number (1910108174485).

Almost surely, 2^{3820216348969} is an apocalyptic number.

It is an amenable number.

3820216348969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3820216348969 is an equidigital number, since it uses as much as digits as its factorization.

3820216348969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 3820216348969 in words is "three trillion, eight hundred twenty billion, two hundred sixteen million, three hundred forty-eight thousand, nine hundred sixty-nine".