128478875147 has 16 divisors (see below), whose sum is σ = 159672139200. Its totient is φ = 100845554688.

The previous prime is 128478875123. The next prime is 128478875179. The reversal of 128478875147 is 741578874821.

It is a cyclic number.

It is not a de Polignac number, because 128478875147 - 2²⁸ = 128210439691 is a prime.

It is a super-3 number, since 3×128478875147³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128478875147.

It is not an unprimeable number, because it can be changed into a prime (128478872147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14585522 + ... + 14594327.

It is an arithmetic number, because the mean of its divisors is an integer number (9979508700).

Almost surely, 2^128478875147 is an apocalyptic number.

128478875147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

128478875147 is a deficient number, since it is larger than the sum of its proper divisors (31193264053).

128478875147 is a wasteful number, since it uses less digits than its factorization.

128478875147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29179910.

The product of its digits is 28098560, while the sum is 62.

The spelling of 128478875147 in words is "one hundred twenty-eight billion, four hundred seventy-eight million, eight hundred seventy-five thousand, one hundred forty-seven".