11838806878 has 16 divisors (see below), whose sum is σ = 17966044080. Its totient is φ = 5850187200.

The previous prime is 11838806869. The next prime is 11838806897. The reversal of 11838806878 is 87860883811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402493 + ... + 430903.

It is an arithmetic number, because the mean of its divisors is an integer number (1122877755).

Almost surely, 2^11838806878 is an apocalyptic number.

11838806878 is a deficient number, since it is larger than the sum of its proper divisors (6127237202).

11838806878 is a wasteful number, since it uses less digits than its factorization.

11838806878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30843.

The product of its (nonzero) digits is 4128768, while the sum is 58.

The spelling of 11838806878 in words is "eleven billion, eight hundred thirty-eight million, eight hundred six thousand, eight hundred seventy-eight".