128379850212 has 12 divisors (see below), whose sum is σ = 299552983856. Its totient is φ = 42793283400.

The previous prime is 128379850211. The next prime is 128379850213. The reversal of 128379850212 is 212058973821.

It is an interprime number because it is at equal distance from previous prime (128379850211) and next prime (128379850213).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128379850211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5349160414 + ... + 5349160437.

Almost surely, 2^128379850212 is an apocalyptic number.

128379850212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128379850212 is an abundant number, since it is smaller than the sum of its proper divisors (171173133644).

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

128379850212 is a wasteful number, since it uses less digits than its factorization.

128379850212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698320858 (or 10698320856 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 128379850212 in words is "one hundred twenty-eight billion, three hundred seventy-nine million, eight hundred fifty thousand, two hundred twelve".