128170552813 has 8 divisors (see below), whose sum is σ = 133768438848. Its totient is φ = 122574771264.

The previous prime is 128170552799. The next prime is 128170552817. The reversal of 128170552813 is 318255071821.

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 128170552813 - 2²¹ = 128168455661 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 128170552813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128170552817) 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, 401020 + ... + 645877.

It is an arithmetic number, because the mean of its divisors is an integer number (16721054856).

Almost surely, 2^128170552813 is an apocalyptic number.

It is an amenable number.

128170552813 is a deficient number, since it is larger than the sum of its proper divisors (5597886035).

128170552813 is a wasteful number, since it uses less digits than its factorization.

128170552813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052243.

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 128170552813 in words is "one hundred twenty-eight billion, one hundred seventy million, five hundred fifty-two thousand, eight hundred thirteen".