128219230770 has 16 divisors (see below), whose sum is σ = 307726153920. Its totient is φ = 34191794864.

The previous prime is 128219230753. The next prime is 128219230771. The reversal of 128219230770 is 77032912821.

128219230770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128219230770² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128219230771) 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, 2136987150 + ... + 2136987209.

It is an arithmetic number, because the mean of its divisors is an integer number (19232884620).

Almost surely, 2^128219230770 is an apocalyptic number.

128219230770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128219230770 is an abundant number, since it is smaller than the sum of its proper divisors (179506923150).

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

128219230770 is a wasteful number, since it uses less digits than its factorization.

128219230770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273974369.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 128219230770 in words is "one hundred twenty-eight billion, two hundred nineteen million, two hundred thirty thousand, seven hundred seventy".