128910871798 has 16 divisors (see below), whose sum is σ = 193890768624. Its totient is φ = 64280852640.

The previous prime is 128910871783. The next prime is 128910871823. The reversal of 128910871798 is 897178019821.

128910871798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042936 + ... + 1159972.

It is an arithmetic number, because the mean of its divisors is an integer number (12118173039).

Almost surely, 2^128910871798 is an apocalyptic number.

128910871798 is a deficient number, since it is larger than the sum of its proper divisors (64979896826).

128910871798 is a wasteful number, since it uses less digits than its factorization.

128910871798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118527.

The product of its (nonzero) digits is 4064256, while the sum is 61.

The spelling of 128910871798 in words is "one hundred twenty-eight billion, nine hundred ten million, eight hundred seventy-one thousand, seven hundred ninety-eight".