128839250180 has 12 divisors (see below), whose sum is σ = 270562425420. Its totient is φ = 51535700064.

The previous prime is 128839250179. The next prime is 128839250203. The reversal of 128839250180 is 81052938821.

It can be written as a sum of positive squares in 2 ways, for example, as 13570852036 + 115268398144 = 116494^2 + 339512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220981235 + ... + 3220981274.

It is an arithmetic number, because the mean of its divisors is an integer number (22546868785).

Almost surely, 2^128839250180 is an apocalyptic number.

128839250180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128839250180 is an abundant number, since it is smaller than the sum of its proper divisors (141723175240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128839250180 is a wasteful number, since it uses less digits than its factorization.

128839250180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6441962518 (or 6441962516 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 128839250180 in words is "one hundred twenty-eight billion, eight hundred thirty-nine million, two hundred fifty thousand, one hundred eighty".