128447516694 has 16 divisors (see below), whose sum is σ = 293594323968. Its totient is φ = 36699290472.

The previous prime is 128447516621. The next prime is 128447516719. The reversal of 128447516694 is 496615744821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529137062 + ... + 1529137145.

It is an arithmetic number, because the mean of its divisors is an integer number (18349645248).

Almost surely, 2^128447516694 is an apocalyptic number.

128447516694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128447516694 is an abundant number, since it is smaller than the sum of its proper divisors (165146807274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128447516694 is a wasteful number, since it uses less digits than its factorization.

128447516694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058274219.

The product of its digits is 11612160, while the sum is 57.

The spelling of 128447516694 in words is "one hundred twenty-eight billion, four hundred forty-seven million, five hundred sixteen thousand, six hundred ninety-four".