128533244444 has 24 divisors (see below), whose sum is σ = 245736817536. Its totient is φ = 58339638000.

The previous prime is 128533244401. The next prime is 128533244449. The reversal of 128533244444 is 444442335821.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 128533244395 and 128533244404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128533244449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083352 + ... + 2144159.

It is an arithmetic number, because the mean of its divisors is an integer number (10239034064).

Almost surely, 2^128533244444 is an apocalyptic number.

It is an amenable number.

128533244444 is a deficient number, since it is larger than the sum of its proper divisors (117203573092).

128533244444 is a wasteful number, since it uses less digits than its factorization.

128533244444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228217 (or 4228215 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 44.

The spelling of 128533244444 in words is "one hundred twenty-eight billion, five hundred thirty-three million, two hundred forty-four thousand, four hundred forty-four".