128245071017 has 8 divisors (see below), whose sum is σ = 146568254016. Its totient is φ = 109922502672.

The previous prime is 128245071011. The next prime is 128245071061. The reversal of 128245071017 is 710170542821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128245071017 - 2¹² = 128245066921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128245071011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453263 + ... + 679659.

It is an arithmetic number, because the mean of its divisors is an integer number (18321031752).

Almost surely, 2^128245071017 is an apocalyptic number.

It is an amenable number.

128245071017 is a deficient number, since it is larger than the sum of its proper divisors (18323182999).

128245071017 is an equidigital number, since it uses as much as digits as its factorization.

128245071017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307327.

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 128245071017 in words is "one hundred twenty-eight billion, two hundred forty-five million, seventy-one thousand, seventeen".