11643942239 has 8 divisors (see below), whose sum is σ = 11838097968. Its totient is φ = 11449892160.

The previous prime is 11643942199. The next prime is 11643942241. The reversal of 11643942239 is 93224934611.

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 11643942239 - 2²⁸ = 11375506783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11643942239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643942259) 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, 213899 + ... + 262755.

It is an arithmetic number, because the mean of its divisors is an integer number (1479762246).

Almost surely, 2^11643942239 is an apocalyptic number.

11643942239 is a deficient number, since it is larger than the sum of its proper divisors (194155729).

11643942239 is an equidigital number, since it uses as much as digits as its factorization.

11643942239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52825.

The product of its digits is 279936, while the sum is 44.

The spelling of 11643942239 in words is "eleven billion, six hundred forty-three million, nine hundred forty-two thousand, two hundred thirty-nine".