11928406578 has 32 divisors (see below), whose sum is σ = 26077427712. Its totient is φ = 3607472400.

The previous prime is 11928406559. The next prime is 11928406601. The reversal of 11928406578 is 87560482911.

11928406578 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 11928406578.

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 15 ways as a sum of consecutive naturals, for example, 146458 + ... + 212853.

It is an arithmetic number, because the mean of its divisors is an integer number (814919616).

Almost surely, 2^11928406578 is an apocalyptic number.

11928406578 is an abundant number, since it is smaller than the sum of its proper divisors (14149021134).

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

11928406578 is a wasteful number, since it uses less digits than its factorization.

11928406578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359830.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 11928406578 in words is "eleven billion, nine hundred twenty-eight million, four hundred six thousand, five hundred seventy-eight".