28736275834 has 32 divisors (see below), whose sum is σ = 49396386816. Its totient is φ = 12282051840.

The previous prime is 28736275823. The next prime is 28736275837. The reversal of 28736275834 is 43857263782.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28736275837) 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 15 ways as a sum of consecutive naturals, for example, 9917874 + ... + 9920770.

It is an arithmetic number, because the mean of its divisors is an integer number (1543637088).

Almost surely, 2^28736275834 is an apocalyptic number.

28736275834 is a deficient number, since it is larger than the sum of its proper divisors (20660110982).

28736275834 is a wasteful number, since it uses less digits than its factorization.

28736275834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590.

The product of its digits is 13547520, while the sum is 55.

The spelling of 28736275834 in words is "twenty-eight billion, seven hundred thirty-six million, two hundred seventy-five thousand, eight hundred thirty-four".