28648716518 has 8 divisors (see below), whose sum is σ = 42980994912. Its totient is φ = 14321718216.

The previous prime is 28648716493. The next prime is 28648716539. The reversal of 28648716518 is 81561784682.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1306430 + ... + 1328177.

It is an arithmetic number, because the mean of its divisors is an integer number (5372624364).

Almost surely, 2^28648716518 is an apocalyptic number.

28648716518 is a deficient number, since it is larger than the sum of its proper divisors (14332278394).

28648716518 is a wasteful number, since it uses less digits than its factorization.

28648716518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640046.

The product of its digits is 5160960, while the sum is 56.

The spelling of 28648716518 in words is "twenty-eight billion, six hundred forty-eight million, seven hundred sixteen thousand, five hundred eighteen".