12191873996080 has 80 divisors (see below), whose sum is σ = 28652712046560. Its totient is φ = 4824050835456.

The previous prime is 12191873996063. The next prime is 12191873996087. The reversal of 12191873996080 is 8069937819121.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (12191873996087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15103351 + ... + 15890089.

It is an arithmetic number, because the mean of its divisors is an integer number (358158900582).

Almost surely, 2^{12191873996080} is an apocalyptic number.

12191873996080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12191873996080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14326356023280).

12191873996080 is an abundant number, since it is smaller than the sum of its proper divisors (16460838050480).

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

12191873996080 is a wasteful number, since it uses less digits than its factorization.

12191873996080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788846 (or 788840 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 64.

The spelling of 12191873996080 in words is "twelve trillion, one hundred ninety-one billion, eight hundred seventy-three million, nine hundred ninety-six thousand, eighty".