128847783134 has 16 divisors (see below), whose sum is σ = 220887324000. Its totient is φ = 55219125984.

The previous prime is 128847783133. The next prime is 128847783173. The reversal of 128847783134 is 431387748821.

128847783134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 128847783134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128847783133) 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, 663752 + ... + 835620.

It is an arithmetic number, because the mean of its divisors is an integer number (13805457750).

Almost surely, 2^128847783134 is an apocalyptic number.

128847783134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128847783134 is a deficient number, since it is larger than the sum of its proper divisors (92039540866).

128847783134 is a wasteful number, since it uses less digits than its factorization.

128847783134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225427.

The product of its digits is 7225344, while the sum is 56.

The spelling of 128847783134 in words is "one hundred twenty-eight billion, eight hundred forty-seven million, seven hundred eighty-three thousand, one hundred thirty-four".