128476384944 has 80 divisors (see below), whose sum is σ = 334013621760. Its totient is φ = 42553181440.

The previous prime is 128476384937. The next prime is 128476384957. The reversal of 128476384944 is 449483674821.

It is a super-3 number, since 3×128476384944³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

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, 5345434 + ... + 5369414.

It is an arithmetic number, because the mean of its divisors is an integer number (4175170272).

Almost surely, 2^128476384944 is an apocalyptic number.

It is an amenable number.

128476384944 is an abundant number, since it is smaller than the sum of its proper divisors (205537236816).

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

128476384944 is a wasteful number, since it uses less digits than its factorization.

128476384944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24698 (or 24692 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 60.

The spelling of 128476384944 in words is "one hundred twenty-eight billion, four hundred seventy-six million, three hundred eighty-four thousand, nine hundred forty-four".