11698065309 has 16 divisors (see below), whose sum is σ = 17841967232. Its totient is φ = 6678479808.

The previous prime is 11698065271. The next prime is 11698065319. The reversal of 11698065309 is 90356089611.

It is not a de Polignac number, because 11698065309 - 2¹² = 11698061213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11698065319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231874 + ... + 277779.

It is an arithmetic number, because the mean of its divisors is an integer number (1115122952).

Almost surely, 2^11698065309 is an apocalyptic number.

It is an amenable number.

11698065309 is a deficient number, since it is larger than the sum of its proper divisors (6143901923).

11698065309 is a wasteful number, since it uses less digits than its factorization.

11698065309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510756.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 11698065309 in words is "eleven billion, six hundred ninety-eight million, sixty-five thousand, three hundred nine".