10999943623189 has 2 divisors, whose sum is σ = 10999943623190. Its totient is φ = 10999943623188.

The previous prime is 10999943623181. The next prime is 10999943623217. The reversal of 10999943623189 is 98132634999901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8791420691089 + 2208522932100 = 2965033^2 + 1486110^2 .

It is a cyclic number.

It is not a de Polignac number, because 10999943623189 - 2³ = 10999943623181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10999943623181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499971811594 + 5499971811595.

It is an arithmetic number, because the mean of its divisors is an integer number (5499971811595).

Almost surely, 2^{10999943623189} is an apocalyptic number.

It is an amenable number.

10999943623189 is a deficient number, since it is larger than the sum of its proper divisors (1).

10999943623189 is an equidigital number, since it uses as much as digits as its factorization.

10999943623189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204073344, while the sum is 73.

The spelling of 10999943623189 in words is "ten trillion, nine hundred ninety-nine billion, nine hundred forty-three million, six hundred twenty-three thousand, one hundred eighty-nine".