128085021480417 has 8 divisors (see below), whose sum is σ = 171911022208320. Its totient is φ = 84824517536400.

The previous prime is 128085021480329. The next prime is 128085021480419. The reversal of 128085021480417 is 714084120580821.

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

It is not a de Polignac number, because 128085021480417 - 2²³ = 128085013091809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128085021480417.

It is not an unprimeable number, because it can be changed into a prime (128085021480419) 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, 141374195442 + ... + 141374196347.

It is an arithmetic number, because the mean of its divisors is an integer number (21488877776040).

Almost surely, 2^{128085021480417} is an apocalyptic number.

It is an amenable number.

128085021480417 is a deficient number, since it is larger than the sum of its proper divisors (43826000727903).

128085021480417 is a wasteful number, since it uses less digits than its factorization.

128085021480417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282748391943.

The product of its (nonzero) digits is 1146880, while the sum is 51.

The spelling of 128085021480417 in words is "one hundred twenty-eight trillion, eighty-five billion, twenty-one million, four hundred eighty thousand, four hundred seventeen".