11738543217 has 8 divisors (see below), whose sum is σ = 15803346624. Its totient is φ = 7749717648.

The previous prime is 11738543203. The next prime is 11738543221. The reversal of 11738543217 is 71234583711.

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

It is not a de Polignac number, because 11738543217 - 2²³ = 11730154609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11738543017) 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, 18994098 + ... + 18994715.

It is an arithmetic number, because the mean of its divisors is an integer number (1975418328).

Almost surely, 2^11738543217 is an apocalyptic number.

It is an amenable number.

11738543217 is a deficient number, since it is larger than the sum of its proper divisors (4064803407).

11738543217 is a wasteful number, since it uses less digits than its factorization.

11738543217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37988919.

The product of its digits is 141120, while the sum is 42.

The spelling of 11738543217 in words is "eleven billion, seven hundred thirty-eight million, five hundred forty-three thousand, two hundred seventeen".