28913936782 has 16 divisors (see below), whose sum is σ = 43649474400. Its totient is φ = 14364187168.

The previous prime is 28913936699. The next prime is 28913936791. The reversal of 28913936782 is 28763931982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809844 + ... + 844792.

It is an arithmetic number, because the mean of its divisors is an integer number (2728092150).

Almost surely, 2^28913936782 is an apocalyptic number.

28913936782 is a deficient number, since it is larger than the sum of its proper divisors (14735537618).

28913936782 is a wasteful number, since it uses less digits than its factorization.

28913936782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37595.

The product of its digits is 7838208, while the sum is 58.

The spelling of 28913936782 in words is "twenty-eight billion, nine hundred thirteen million, nine hundred thirty-six thousand, seven hundred eighty-two".