128585874805 has 8 divisors (see below), whose sum is σ = 154306335744. Its totient is φ = 102866509200.

The previous prime is 128585874803. The next prime is 128585874839. The reversal of 128585874805 is 508478585821.

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

It is not a de Polignac number, because 128585874805 - 2¹ = 128585874803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128585874803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11460 + ... + 507250.

It is an arithmetic number, because the mean of its divisors is an integer number (19288291968).

Almost surely, 2^128585874805 is an apocalyptic number.

It is an amenable number.

128585874805 is a deficient number, since it is larger than the sum of its proper divisors (25720460939).

128585874805 is an equidigital number, since it uses as much as digits as its factorization.

128585874805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547667.

The product of its (nonzero) digits is 28672000, while the sum is 61.

The spelling of 128585874805 in words is "one hundred twenty-eight billion, five hundred eighty-five million, eight hundred seventy-four thousand, eight hundred five".