128993701495107 has 16 divisors (see below), whose sum is σ = 181046281232000. Its totient is φ = 81468585860544.

The previous prime is 128993701495073. The next prime is 128993701495123. The reversal of 128993701495107 is 701594107399821.

It is not a de Polignac number, because 128993701495107 - 2⁸ = 128993701494851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128993701495007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11369257 + ... + 19678602.

It is an arithmetic number, because the mean of its divisors is an integer number (11315392577000).

Almost surely, 2^{128993701495107} is an apocalyptic number.

128993701495107 is a deficient number, since it is larger than the sum of its proper divisors (52052579736893).

128993701495107 is a wasteful number, since it uses less digits than its factorization.

128993701495107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31120770.

The product of its (nonzero) digits is 34292160, while the sum is 66.

The spelling of 128993701495107 in words is "one hundred twenty-eight trillion, nine hundred ninety-three billion, seven hundred one million, four hundred ninety-five thousand, one hundred seven".