128853171209 has 8 divisors (see below), whose sum is σ = 149674878528. Its totient is φ = 108634991760.

The previous prime is 128853171163. The next prime is 128853171269. The reversal of 128853171209 is 902171358821.

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 128853171209 - 2²⁸ = 128584735753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128853171269) 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, 150881507 + ... + 150882360.

It is an arithmetic number, because the mean of its divisors is an integer number (18709359816).

Almost surely, 2^128853171209 is an apocalyptic number.

It is an amenable number.

128853171209 is a deficient number, since it is larger than the sum of its proper divisors (20821707319).

128853171209 is an equidigital number, since it uses as much as digits as its factorization.

128853171209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301763935.

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 128853171209 in words is "one hundred twenty-eight billion, eight hundred fifty-three million, one hundred seventy-one thousand, two hundred nine".