128247882685 has 32 divisors (see below), whose sum is σ = 169356644352. Its totient is φ = 92639289600.

The previous prime is 128247882671. The next prime is 128247882767. The reversal of 128247882685 is 586288742821.

It is not a de Polignac number, because 128247882685 - 2¹³ = 128247874493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5949547 + ... + 5971063.

It is an arithmetic number, because the mean of its divisors is an integer number (5292395136).

Almost surely, 2^128247882685 is an apocalyptic number.

It is an amenable number.

128247882685 is a deficient number, since it is larger than the sum of its proper divisors (41108761667).

128247882685 is a wasteful number, since it uses less digits than its factorization.

128247882685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23533.

The product of its digits is 27525120, while the sum is 61.

The spelling of 128247882685 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-two thousand, six hundred eighty-five".