10891288209 has 8 divisors (see below), whose sum is σ = 14533041312. Its totient is φ = 7255196960.

The previous prime is 10891288193. The next prime is 10891288211. The reversal of 10891288209 is 90288219801.

10891288209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10891288209 - 2⁴ = 10891288193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10891288229) 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 7 ways as a sum of consecutive naturals, for example, 1410972 + ... + 1418669.

It is an arithmetic number, because the mean of its divisors is an integer number (1816630164).

Almost surely, 2^10891288209 is an apocalyptic number.

It is an amenable number.

10891288209 is a deficient number, since it is larger than the sum of its proper divisors (3641753103).

10891288209 is a wasteful number, since it uses less digits than its factorization.

10891288209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830927.

The product of its (nonzero) digits is 165888, while the sum is 48.

The spelling of 10891288209 in words is "ten billion, eight hundred ninety-one million, two hundred eighty-eight thousand, two hundred nine".