11175281889 has 8 divisors (see below), whose sum is σ = 15684606240. Its totient is φ = 7058072736.

The previous prime is 11175281861. The next prime is 11175281893. The reversal of 11175281889 is 98818257111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11175281889 - 2¹⁷ = 11175150817 is a prime.

It is a super-2 number, since 2×11175281889² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11175281899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98028732 + ... + 98028845.

It is an arithmetic number, because the mean of its divisors is an integer number (1960575780).

Almost surely, 2^11175281889 is an apocalyptic number.

11175281889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11175281889 is a deficient number, since it is larger than the sum of its proper divisors (4509324351).

11175281889 is a wasteful number, since it uses less digits than its factorization.

11175281889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196057599.

The product of its digits is 322560, while the sum is 51.

The spelling of 11175281889 in words is "eleven billion, one hundred seventy-five million, two hundred eighty-one thousand, eight hundred eighty-nine".