12128388322798 has 48 divisors (see below), whose sum is σ = 20918323912752. Its totient is φ = 5273211702000.

The previous prime is 12128388322781. The next prime is 12128388322849. The reversal of 12128388322798 is 89722388382121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2898153 + ... + 5714548.

It is an arithmetic number, because the mean of its divisors is an integer number (435798414849).

Almost surely, 2^{12128388322798} is an apocalyptic number.

12128388322798 is a deficient number, since it is larger than the sum of its proper divisors (8789935589954).

12128388322798 is an equidigital number, since it uses as much as digits as its factorization.

12128388322798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612782 (or 8612737 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 64.

The spelling of 12128388322798 in words is "twelve trillion, one hundred twenty-eight billion, three hundred eighty-eight million, three hundred twenty-two thousand, seven hundred ninety-eight".