128285054884 has 24 divisors (see below), whose sum is σ = 257872507200. Its totient is φ = 54700224096.

The previous prime is 128285054873. The next prime is 128285054941. The reversal of 128285054884 is 488450582821.

It is a super-3 number, since 3×128285054884³ (a number of 34 digits) contains 333 as substring.

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, 11622934 + ... + 11633965.

It is an arithmetic number, because the mean of its divisors is an integer number (10744687800).

Almost surely, 2^128285054884 is an apocalyptic number.

128285054884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128285054884 is an abundant number, since it is smaller than the sum of its proper divisors (129587452316).

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

128285054884 is a wasteful number, since it uses less digits than its factorization.

128285054884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23257107 (or 23257105 counting only the distinct ones).

The product of its (nonzero) digits is 6553600, while the sum is 55.

The spelling of 128285054884 in words is "one hundred twenty-eight billion, two hundred eighty-five million, fifty-four thousand, eight hundred eighty-four".