11826135378 has 64 divisors (see below), whose sum is σ = 27151488000. Its totient is φ = 3811587840.

The previous prime is 11826135353. The next prime is 11826135379. The reversal of 11826135378 is 87353162811.

It is a happy number.

11826135378 is a `hidden beast` number, since 1 + 18 + 261 + 3 + 5 + 378 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11826135379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2597448 + ... + 2601996.

It is an arithmetic number, because the mean of its divisors is an integer number (424242000).

Almost surely, 2^11826135378 is an apocalyptic number.

11826135378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11826135378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13575744000).

11826135378 is an abundant number, since it is smaller than the sum of its proper divisors (15325352622).

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

11826135378 is a wasteful number, since it uses less digits than its factorization.

11826135378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144 (or 6138 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 11826135378 in words is "eleven billion, eight hundred twenty-six million, one hundred thirty-five thousand, three hundred seventy-eight".