11938406717 has 8 divisors (see below), whose sum is σ = 12336293856. Its totient is φ = 11544478992.

The previous prime is 11938406687. The next prime is 11938406719. The reversal of 11938406717 is 71760483911.

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 11938406717 - 2²⁰ = 11937358141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938406719) 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, 983723 + ... + 995784.

It is an arithmetic number, because the mean of its divisors is an integer number (1542036732).

Almost surely, 2^11938406717 is an apocalyptic number.

It is an amenable number.

11938406717 is a deficient number, since it is larger than the sum of its proper divisors (397887139).

11938406717 is a wasteful number, since it uses less digits than its factorization.

11938406717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979707.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 11938406717 in words is "eleven billion, nine hundred thirty-eight million, four hundred six thousand, seven hundred seventeen".