12195874944 has 256 divisors, whose sum is σ = 40014518400. Its totient is φ = 3625390080.

The previous prime is 12195874931. The next prime is 12195874973. The reversal of 12195874944 is 44947859121.

12195874944 is a `hidden beast` number, since 1 + 2 + 19 + 587 + 4 + 9 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2011822 + ... + 2017874.

Almost surely, 2^12195874944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12195874944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20007259200).

12195874944 is an abundant number, since it is smaller than the sum of its proper divisors (27818643456).

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

12195874944 is a wasteful number, since it uses less digits than its factorization.

12195874944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140 (or 6122 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 12195874944 in words is "twelve billion, one hundred ninety-five million, eight hundred seventy-four thousand, nine hundred forty-four".