11785436238 has 8 divisors (see below), whose sum is σ = 23570872488. Its totient is φ = 3928478744.

The previous prime is 11785436231. The next prime is 11785436239. The reversal of 11785436238 is 83263458711.

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

11785436238 is an admirable 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 (11785436231) 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, 982119681 + ... + 982119692.

It is an arithmetic number, because the mean of its divisors is an integer number (2946359061).

Almost surely, 2^11785436238 is an apocalyptic number.

11785436238 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.

11785436238 is a wasteful number, since it uses less digits than its factorization.

11785436238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964239378.

The product of its digits is 967680, while the sum is 48.

The spelling of 11785436238 in words is "eleven billion, seven hundred eighty-five million, four hundred thirty-six thousand, two hundred thirty-eight".