128908178943 has 16 divisors (see below), whose sum is σ = 186760012800. Its totient is φ = 78789378240.

The previous prime is 128908178941. The next prime is 128908178953. The reversal of 128908178943 is 349871809821.

It is not a de Polignac number, because 128908178943 - 2¹ = 128908178941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128908178941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36474798 + ... + 36478331.

It is an arithmetic number, because the mean of its divisors is an integer number (11672500800).

Almost surely, 2^128908178943 is an apocalyptic number.

128908178943 is a deficient number, since it is larger than the sum of its proper divisors (57851833857).

128908178943 is a wasteful number, since it uses less digits than its factorization.

128908178943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72953182.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 128908178943 in words is "one hundred twenty-eight billion, nine hundred eight million, one hundred seventy-eight thousand, nine hundred forty-three".