12043261672 has 64 divisors (see below), whose sum is σ = 25131778560. Its totient is φ = 5372870400.

The previous prime is 12043261639. The next prime is 12043261691. The reversal of 12043261672 is 27616234021.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3805963 + ... + 3809125.

It is an arithmetic number, because the mean of its divisors is an integer number (392684040).

Almost surely, 2^12043261672 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 12043261672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12565889280).

12043261672 is an abundant number, since it is smaller than the sum of its proper divisors (13088516888).

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

12043261672 is a wasteful number, since it uses less digits than its factorization.

12043261672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394 (or 4390 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 12043261672 its reverse (27616234021), we get a palindrome (39659495693).

The spelling of 12043261672 in words is "twelve billion, forty-three million, two hundred sixty-one thousand, six hundred seventy-two".