128005611013275 has 24 divisors (see below), whose sum is σ = 211636274535024. Its totient is φ = 68269552435200.

The previous prime is 128005611013271. The next prime is 128005611013333. The reversal of 128005611013275 is 572310116500821.

It is not a de Polignac number, because 128005611013275 - 2² = 128005611013271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128005611013271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78817435 + ... + 80425115.

It is an arithmetic number, because the mean of its divisors is an integer number (8818178105626).

Almost surely, 2^{128005611013275} is an apocalyptic number.

128005611013275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128005611013275 is a deficient number, since it is larger than the sum of its proper divisors (83630663521749).

128005611013275 is a wasteful number, since it uses less digits than its factorization.

128005611013275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669311 (or 2669306 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 128005611013275 in words is "one hundred twenty-eight trillion, five billion, six hundred eleven million, thirteen thousand, two hundred seventy-five".