12670900128 has 72 divisors (see below), whose sum is σ = 36870882048. Its totient is φ = 4125405312.

The previous prime is 12670900091. The next prime is 12670900129. The reversal of 12670900128 is 82100907621.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12670900092 and 12670900101.

It is not an unprimeable number, because it can be changed into a prime (12670900129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499200 + ... + 523967.

It is an arithmetic number, because the mean of its divisors is an integer number (512095584).

Almost surely, 2^12670900128 is an apocalyptic number.

12670900128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12670900128 is an abundant number, since it is smaller than the sum of its proper divisors (24199981920).

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

12670900128 is a wasteful number, since it uses less digits than its factorization.

12670900128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023226 (or 1023215 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 12670900128 in words is "twelve billion, six hundred seventy million, nine hundred thousand, one hundred twenty-eight".