28578914914 has 32 divisors (see below), whose sum is σ = 51669311616. Its totient is φ = 11694693120.

The previous prime is 28578914899. The next prime is 28578914921. The reversal of 28578914914 is 41941987582.

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 15 ways as a sum of consecutive naturals, for example, 1652577 + ... + 1669780.

It is an arithmetic number, because the mean of its divisors is an integer number (1614665988).

Almost surely, 2^28578914914 is an apocalyptic number.

28578914914 is a deficient number, since it is larger than the sum of its proper divisors (23090396702).

28578914914 is a wasteful number, since it uses less digits than its factorization.

28578914914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322410.

The product of its digits is 5806080, while the sum is 58.

The spelling of 28578914914 in words is "twenty-eight billion, five hundred seventy-eight million, nine hundred fourteen thousand, nine hundred fourteen".