11450218589 has 4 divisors (see below), whose sum is σ = 11508341724. Its totient is φ = 11392095456.

The previous prime is 11450218541. The next prime is 11450218609. The reversal of 11450218589 is 98581205411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9080184100 + 2370034489 = 95290^2 + 48683^2 .

It is a cyclic number.

It is not a de Polignac number, because 11450218589 - 2¹⁶ = 11450153053 is a prime.

It is a super-2 number, since 2×11450218589² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11450218529) 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 in 3 ways as a sum of consecutive naturals, for example, 29061272 + ... + 29061665.

It is an arithmetic number, because the mean of its divisors is an integer number (2877085431).

Almost surely, 2^11450218589 is an apocalyptic number.

It is an amenable number.

11450218589 is a deficient number, since it is larger than the sum of its proper divisors (58123135).

11450218589 is an equidigital number, since it uses as much as digits as its factorization.

11450218589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58123134.

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 11450218589 in words is "eleven billion, four hundred fifty million, two hundred eighteen thousand, five hundred eighty-nine".