11111357889 has 36 divisors (see below), whose sum is σ = 16583144448. Its totient is φ = 7168754880.

The previous prime is 11111357849. The next prime is 11111357897. The reversal of 11111357889 is 98875311111.

11111357889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111357889 - 2²⁰ = 11110309313 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11111357849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1918492 + ... + 1924274.

Almost surely, 2^11111357889 is an apocalyptic number.

It is an amenable number.

11111357889 is a deficient number, since it is larger than the sum of its proper divisors (5471786559).

11111357889 is a wasteful number, since it uses less digits than its factorization.

11111357889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998 (or 5954 counting only the distinct ones).

The product of its digits is 60480, while the sum is 45.

The spelling of 11111357889 in words is "eleven billion, one hundred eleven million, three hundred fifty-seven thousand, eight hundred eighty-nine".