10983171989 has 2 divisors, whose sum is σ = 10983171990. Its totient is φ = 10983171988.

The previous prime is 10983171967. The next prime is 10983172007. The reversal of 10983171989 is 98917138901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10623424900 + 359747089 = 103070^2 + 18967^2 .

It is a cyclic number.

It is not a de Polignac number, because 10983171989 - 2⁸ = 10983171733 is a prime.

It is a super-2 number, since 2×10983171989² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10983171919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5491585994 + 5491585995.

It is an arithmetic number, because the mean of its divisors is an integer number (5491585995).

Almost surely, 2^10983171989 is an apocalyptic number.

It is an amenable number.

10983171989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10983171989 is an equidigital number, since it uses as much as digits as its factorization.

10983171989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 56.

The spelling of 10983171989 in words is "ten billion, nine hundred eighty-three million, one hundred seventy-one thousand, nine hundred eighty-nine".