11689213913 has 8 divisors (see below), whose sum is σ = 12856222848. Its totient is φ = 10560467664.

The previous prime is 11689213903. The next prime is 11689213919. The reversal of 11689213913 is 31931298611.

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 11689213913 - 2⁴ = 11689213897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11689213919) 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, 9565031 + ... + 9566252.

It is an arithmetic number, because the mean of its divisors is an integer number (1607027856).

Almost surely, 2^11689213913 is an apocalyptic number.

11689213913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11689213913 is a deficient number, since it is larger than the sum of its proper divisors (1167008935).

11689213913 is a wasteful number, since it uses less digits than its factorization.

11689213913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19131343.

The product of its digits is 69984, while the sum is 44.

The spelling of 11689213913 in words is "eleven billion, six hundred eighty-nine million, two hundred thirteen thousand, nine hundred thirteen".