128084375415 has 16 divisors (see below), whose sum is σ = 209700931968. Its totient is φ = 66723023136.

The previous prime is 128084375407. The next prime is 128084375431. The reversal of 128084375415 is 514573480821.

It is not a de Polignac number, because 128084375415 - 2³ = 128084375407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99289569 + ... + 99290858.

It is an arithmetic number, because the mean of its divisors is an integer number (13106308248).

Almost surely, 2^128084375415 is an apocalyptic number.

128084375415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128084375415 is a deficient number, since it is larger than the sum of its proper divisors (81616556553).

128084375415 is a wasteful number, since it uses less digits than its factorization.

128084375415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198580478.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 128084375415 in words is "one hundred twenty-eight billion, eighty-four million, three hundred seventy-five thousand, four hundred fifteen".