128822867412 has 24 divisors (see below), whose sum is σ = 300737265696. Its totient is φ = 42919445088.

The previous prime is 128822867387. The next prime is 128822867413. The reversal of 128822867412 is 214768228821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128822867413) 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, 2663878 + ... + 2711805.

It is an arithmetic number, because the mean of its divisors is an integer number (12530719404).

Almost surely, 2^128822867412 is an apocalyptic number.

128822867412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128822867412 is an abundant number, since it is smaller than the sum of its proper divisors (171914398284).

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

128822867412 is a wasteful number, since it uses less digits than its factorization.

128822867412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377687 (or 5377685 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 51.

The spelling of 128822867412 in words is "one hundred twenty-eight billion, eight hundred twenty-two million, eight hundred sixty-seven thousand, four hundred twelve".