128080180417 has 6 divisors (see below), whose sum is σ = 148991230338. Its totient is φ = 109783011744.

The previous prime is 128080180409. The next prime is 128080180441. The reversal of 128080180417 is 714081080821.

It can be written as a sum of positive squares in only one way, i.e., 117154913841 + 10925266576 = 342279^2 + 104524^2 .

It is not a de Polignac number, because 128080180417 - 2³ = 128080180409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128080180417.

It is not an unprimeable number, because it can be changed into a prime (128080180447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1306940568 + ... + 1306940665.

It is an arithmetic number, because the mean of its divisors is an integer number (24831871723).

Almost surely, 2^128080180417 is an apocalyptic number.

It is an amenable number.

128080180417 is a deficient number, since it is larger than the sum of its proper divisors (20911049921).

128080180417 is an equidigital number, since it uses as much as digits as its factorization.

128080180417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613881247 (or 2613881240 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 40.

The spelling of 128080180417 in words is "one hundred twenty-eight billion, eighty million, one hundred eighty thousand, four hundred seventeen".