1043993802169 has 2 divisors, whose sum is σ = 1043993802170. Its totient is φ = 1043993802168.

The previous prime is 1043993802143. The next prime is 1043993802197. The reversal of 1043993802169 is 9612083993401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1017854996544 + 26138805625 = 1008888^2 + 161675^2 .

It is an emirp because it is prime and its reverse (9612083993401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1043993802169 - 2²³ = 1043985413561 is a prime.

It is a super-2 number, since 2×1043993802169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1043993802869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521996901084 + 521996901085.

It is an arithmetic number, because the mean of its divisors is an integer number (521996901085).

Almost surely, 2^{1043993802169} is an apocalyptic number.

It is an amenable number.

1043993802169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043993802169 is an equidigital number, since it uses as much as digits as its factorization.

1043993802169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 1043993802169 in words is "one trillion, forty-three billion, nine hundred ninety-three million, eight hundred two thousand, one hundred sixty-nine".