11311808435178 has 16 divisors (see below), whose sum is σ = 23149747495776. Its totient is φ = 3682914374160.

The previous prime is 11311808435177. The next prime is 11311808435183. The reversal of 11311808435178 is 87153480811311.

It is a self number, because there is not a number n which added to its sum of digits gives 11311808435178.

It is not an unprimeable number, because it can be changed into a prime (11311808435177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21922109113 + ... + 21922109628.

It is an arithmetic number, because the mean of its divisors is an integer number (1446859218486).

Almost surely, 2^{11311808435178} is an apocalyptic number.

11311808435178 is an abundant number, since it is smaller than the sum of its proper divisors (11837939060598).

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

11311808435178 is a wasteful number, since it uses less digits than its factorization.

11311808435178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43844218789.

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 11311808435178 in words is "eleven trillion, three hundred eleven billion, eight hundred eight million, four hundred thirty-five thousand, one hundred seventy-eight".