128993701495108 has 48 divisors (see below), whose sum is σ = 231983364674880. Its totient is φ = 62735046192000.

The previous prime is 128993701495073. The next prime is 128993701495123. The reversal of 128993701495108 is 801594107399821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17534803 + ... + 23779333.

It is an arithmetic number, because the mean of its divisors is an integer number (4832986764060).

Almost surely, 2^{128993701495108} is an apocalyptic number.

It is an amenable number.

128993701495108 is a deficient number, since it is larger than the sum of its proper divisors (102989663179772).

128993701495108 is a wasteful number, since it uses less digits than its factorization.

128993701495108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245428 (or 6245426 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 67.

The spelling of 128993701495108 in words is "one hundred twenty-eight trillion, nine hundred ninety-three billion, seven hundred one million, four hundred ninety-five thousand, one hundred eight".