128594577474378 has 48 divisors (see below), whose sum is σ = 279607089018816. Its totient is φ = 42713495576640.

The previous prime is 128594577474359. The next prime is 128594577474463. The reversal of 128594577474378 is 873474775495821.

128594577474378 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 9 + 4 + 5 + 77 + 474 + 3 + 78 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 128594577474297 and 128594577474306.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4408068 + ... + 16631903.

It is an arithmetic number, because the mean of its divisors is an integer number (5825147687892).

Almost surely, 2^{128594577474378} is an apocalyptic number.

128594577474378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

128594577474378 is an abundant number, since it is smaller than the sum of its proper divisors (151012511544438).

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

128594577474378 is a wasteful number, since it uses less digits than its factorization.

128594577474378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21041179 (or 21041176 counting only the distinct ones).

The product of its digits is 13276569600, while the sum is 81.

The spelling of 128594577474378 in words is "one hundred twenty-eight trillion, five hundred ninety-four billion, five hundred seventy-seven million, four hundred seventy-four thousand, three hundred seventy-eight".