11838717389 has 8 divisors (see below), whose sum is σ = 12367026432. Its totient is φ = 11311540240.

The previous prime is 11838717383. The next prime is 11838717461. The reversal of 11838717389 is 98371783811.

It is a happy number.

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 11838717389 - 2²⁴ = 11821940173 is a prime.

It is a super-2 number, since 2×11838717389² (a number of 21 digits) contains 22 as substring.

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 (11838717383) 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, 261554 + ... + 303459.

It is an arithmetic number, because the mean of its divisors is an integer number (1545878304).

Almost surely, 2^11838717389 is an apocalyptic number.

It is an amenable number.

11838717389 is a deficient number, since it is larger than the sum of its proper divisors (528309043).

11838717389 is an equidigital number, since it uses as much as digits as its factorization.

11838717389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565947.

The product of its digits is 2032128, while the sum is 56.

The spelling of 11838717389 in words is "eleven billion, eight hundred thirty-eight million, seven hundred seventeen thousand, three hundred eighty-nine".