11853828438 has 32 divisors (see below), whose sum is σ = 23959653120. Its totient is φ = 3909333600.

The previous prime is 11853828431. The next prime is 11853828443. The reversal of 11853828438 is 83482835811.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11853828431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938481 + ... + 951027.

It is an arithmetic number, because the mean of its divisors is an integer number (748739160).

Almost surely, 2^11853828438 is an apocalyptic number.

11853828438 is an abundant number, since it is smaller than the sum of its proper divisors (12105824682).

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

11853828438 is a wasteful number, since it uses less digits than its factorization.

11853828438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14212.

The product of its digits is 1474560, while the sum is 51.

The spelling of 11853828438 in words is "eleven billion, eight hundred fifty-three million, eight hundred twenty-eight thousand, four hundred thirty-eight".