11812445238 has 16 divisors (see below), whose sum is σ = 25772607936. Its totient is φ = 3579528840.

The previous prime is 11812445237. The next prime is 11812445297. The reversal of 11812445238 is 83254421811.

It is a junction number, because it is equal to n+sod(n) for n = 11812445196 and 11812445205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11812445237) 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, 89488156 + ... + 89488287.

It is an arithmetic number, because the mean of its divisors is an integer number (1610787996).

Almost surely, 2^11812445238 is an apocalyptic number.

11812445238 is an abundant number, since it is smaller than the sum of its proper divisors (13960162698).

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

11812445238 is a wasteful number, since it uses less digits than its factorization.

11812445238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178976459.

The product of its digits is 61440, while the sum is 39.

The spelling of 11812445238 in words is "eleven billion, eight hundred twelve million, four hundred forty-five thousand, two hundred thirty-eight".