11724635238 has 8 divisors (see below), whose sum is σ = 23449270488. Its totient is φ = 3908211744.

The previous prime is 11724635213. The next prime is 11724635239. The reversal of 11724635238 is 83253642711.

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

11724635238 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 11724635238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11724635239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977052931 + ... + 977052942.

It is an arithmetic number, because the mean of its divisors is an integer number (2931158811).

Almost surely, 2^11724635238 is an apocalyptic number.

11724635238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11724635238 is a wasteful number, since it uses less digits than its factorization.

11724635238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954105878.

The product of its digits is 241920, while the sum is 42.

The spelling of 11724635238 in words is "eleven billion, seven hundred twenty-four million, six hundred thirty-five thousand, two hundred thirty-eight".