11678342478 has 16 divisors (see below), whose sum is σ = 25480020096. Its totient is φ = 3538891640.

The previous prime is 11678342411. The next prime is 11678342497. The reversal of 11678342478 is 87424387611.

11678342478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11678342478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88472226 + ... + 88472357.

It is an arithmetic number, because the mean of its divisors is an integer number (1592501256).

Almost surely, 2^11678342478 is an apocalyptic number.

11678342478 is an abundant number, since it is smaller than the sum of its proper divisors (13801677618).

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

11678342478 is a wasteful number, since it uses less digits than its factorization.

11678342478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176944599.

The product of its digits is 1806336, while the sum is 51.

The spelling of 11678342478 in words is "eleven billion, six hundred seventy-eight million, three hundred forty-two thousand, four hundred seventy-eight".