128031746278 has 32 divisors (see below), whose sum is σ = 207473516640. Its totient is φ = 59067889920.

The previous prime is 128031746273. The next prime is 128031746299. The reversal of 128031746278 is 872647130821.

128031746278 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 not an unprimeable number, because it can be changed into a prime (128031746273) 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, 43908 + ... + 507928.

It is an arithmetic number, because the mean of its divisors is an integer number (6483547395).

Almost surely, 2^128031746278 is an apocalyptic number.

128031746278 is a deficient number, since it is larger than the sum of its proper divisors (79441770362).

128031746278 is a wasteful number, since it uses less digits than its factorization.

128031746278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464232.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 128031746278 in words is "one hundred twenty-eight billion, thirty-one million, seven hundred forty-six thousand, two hundred seventy-eight".