383845616669 has 2 divisors, whose sum is σ = 383845616670. Its totient is φ = 383845616668.

The previous prime is 383845616617. The next prime is 383845616681. The reversal of 383845616669 is 966616548383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232164967225 + 151680649444 = 481835^2 + 389462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383845616669 is a prime.

It is a super-2 number, since 2×383845616669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383845616269) 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, 191922808334 + 191922808335.

It is an arithmetic number, because the mean of its divisors is an integer number (191922808335).

Almost surely, 2^383845616669 is an apocalyptic number.

It is an amenable number.

383845616669 is a deficient number, since it is larger than the sum of its proper divisors (1).

383845616669 is an equidigital number, since it uses as much as digits as its factorization.

383845616669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134369280, while the sum is 65.

The spelling of 383845616669 in words is "three hundred eighty-three billion, eight hundred forty-five million, six hundred sixteen thousand, six hundred sixty-nine".