128228360844 has 24 divisors (see below), whose sum is σ = 303665174848. Its totient is φ = 42104834640.

The previous prime is 128228360791. The next prime is 128228360849. The reversal of 128228360844 is 448063822821.

It is a junction number, because it is equal to n+sod(n) for n = 128228360793 and 128228360802.

It is not an unprimeable number, because it can be changed into a prime (128228360849) 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, 79743202 + ... + 79744809.

Almost surely, 2^128228360844 is an apocalyptic number.

It is an amenable number.

128228360844 is an abundant number, since it is smaller than the sum of its proper divisors (175436814004).

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

128228360844 is a wasteful number, since it uses less digits than its factorization.

128228360844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159488085 (or 159488083 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 128228360844 in words is "one hundred twenty-eight billion, two hundred twenty-eight million, three hundred sixty thousand, eight hundred forty-four".