128538002318 has 24 divisors (see below), whose sum is σ = 211243475016. Its totient is φ = 58175067200.

The previous prime is 128538002297. The next prime is 128538002321. The reversal of 128538002318 is 813200835821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1140548 + ... + 1248168.

It is an arithmetic number, because the mean of its divisors is an integer number (8801811459).

Almost surely, 2^128538002318 is an apocalyptic number.

128538002318 is a deficient number, since it is larger than the sum of its proper divisors (82705472698).

128538002318 is a wasteful number, since it uses less digits than its factorization.

128538002318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108100 (or 107867 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 128538002318 in words is "one hundred twenty-eight billion, five hundred thirty-eight million, two thousand, three hundred eighteen".