11405916678 has 16 divisors (see below), whose sum is σ = 24566589936. Its totient is φ = 3509512800.

The previous prime is 11405916671. The next prime is 11405916727. The reversal of 11405916678 is 87661950411.

It is a happy number.

11405916678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405916671) by changing a digit.

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, 73114773 + ... + 73114928.

It is an arithmetic number, because the mean of its divisors is an integer number (1535411871).

Almost surely, 2^11405916678 is an apocalyptic number.

11405916678 is an abundant number, since it is smaller than the sum of its proper divisors (13160673258).

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

11405916678 is a wasteful number, since it uses less digits than its factorization.

11405916678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146229719.

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 11405916678 in words is "eleven billion, four hundred five million, nine hundred sixteen thousand, six hundred seventy-eight".