28726794118 has 16 divisors (see below), whose sum is σ = 48523852800. Its totient is φ = 12636419400.

The previous prime is 28726794023. The next prime is 28726794133. The reversal of 28726794118 is 81149762782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21060018 + ... + 21061381.

It is an arithmetic number, because the mean of its divisors is an integer number (3032740800).

Almost surely, 2^28726794118 is an apocalyptic number.

28726794118 is a deficient number, since it is larger than the sum of its proper divisors (19797058682).

28726794118 is a wasteful number, since it uses less digits than its factorization.

28726794118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42121443.

The product of its digits is 2709504, while the sum is 55.

The spelling of 28726794118 in words is "twenty-eight billion, seven hundred twenty-six million, seven hundred ninety-four thousand, one hundred eighteen".