11963709338 has 8 divisors (see below), whose sum is σ = 20509216032. Its totient is φ = 5127303996.

The previous prime is 11963709323. The next prime is 11963709343. The reversal of 11963709338 is 83390736911.

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

It is a super-2 number, since 2×11963709338² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427275320 + ... + 427275347.

It is an arithmetic number, because the mean of its divisors is an integer number (2563652004).

Almost surely, 2^11963709338 is an apocalyptic number.

11963709338 is a deficient number, since it is larger than the sum of its proper divisors (8545506694).

11963709338 is an equidigital number, since it uses as much as digits as its factorization.

11963709338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854550676.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 11963709338 in words is "eleven billion, nine hundred sixty-three million, seven hundred nine thousand, three hundred thirty-eight".