11110780189 has 2 divisors, whose sum is σ = 11110780190. Its totient is φ = 11110780188.

The previous prime is 11110780171. The next prime is 11110780201. The reversal of 11110780189 is 98108701111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10576476964 + 534303225 = 102842^2 + 23115^2 .

It is a cyclic number.

It is not a de Polignac number, because 11110780189 - 2¹⁹ = 11110255901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11110780129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555390094 + 5555390095.

It is an arithmetic number, because the mean of its divisors is an integer number (5555390095).

Almost surely, 2^11110780189 is an apocalyptic number.

It is an amenable number.

11110780189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110780189 is an equidigital number, since it uses as much as digits as its factorization.

11110780189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 37.

The spelling of 11110780189 in words is "eleven billion, one hundred ten million, seven hundred eighty thousand, one hundred eighty-nine".