928728678507 has 64 divisors (see below), whose sum is σ = 1434833326080. Its totient is φ = 523401840000.

The previous prime is 928728678491. The next prime is 928728678511. The reversal of 928728678507 is 705876827829.

It is not a de Polignac number, because 928728678507 - 2⁴ = 928728678491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (928728678547) 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 63 ways as a sum of consecutive naturals, for example, 388750869 + ... + 388753257.

It is an arithmetic number, because the mean of its divisors is an integer number (22419270720).

Almost surely, 2^928728678507 is an apocalyptic number.

928728678507 is a deficient number, since it is larger than the sum of its proper divisors (506104647573).

928728678507 is a wasteful number, since it uses less digits than its factorization.

928728678507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 189665280, while the sum is 69.

The spelling of 928728678507 in words is "nine hundred twenty-eight billion, seven hundred twenty-eight million, six hundred seventy-eight thousand, five hundred seven".