128276322308 has 12 divisors (see below), whose sum is σ = 229958773212. Its totient is φ = 62573815680.

The previous prime is 128276322281. The next prime is 128276322313. The reversal of 128276322308 is 803223672821.

It can be written as a sum of positive squares in 2 ways, for example, as 60060285184 + 68216037124 = 245072^2 + 261182^2 .

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, 391086185 + ... + 391086512.

It is an arithmetic number, because the mean of its divisors is an integer number (19163231101).

Almost surely, 2^128276322308 is an apocalyptic number.

It is an amenable number.

128276322308 is a deficient number, since it is larger than the sum of its proper divisors (101682450904).

128276322308 is a wasteful number, since it uses less digits than its factorization.

128276322308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782172742 (or 782172740 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 128276322308 in words is "one hundred twenty-eight billion, two hundred seventy-six million, three hundred twenty-two thousand, three hundred eight".