28758729043 has 8 divisors (see below), whose sum is σ = 31725667440. Its totient is φ = 25850542080.

The previous prime is 28758729017. The next prime is 28758729049. The reversal of 28758729043 is 34092785782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28758729043 - 2⁵ = 28758729011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28758729049) 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 7 ways as a sum of consecutive naturals, for example, 14686830 + ... + 14688787.

It is an arithmetic number, because the mean of its divisors is an integer number (3965708430).

Almost surely, 2^28758729043 is an apocalyptic number.

28758729043 is a deficient number, since it is larger than the sum of its proper divisors (2966938397).

28758729043 is a wasteful number, since it uses less digits than its factorization.

28758729043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29375717.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 28758729043 in words is "twenty-eight billion, seven hundred fifty-eight million, seven hundred twenty-nine thousand, forty-three".