12071481845 has 32 divisors (see below), whose sum is σ = 14969946624. Its totient is φ = 9340531200.

The previous prime is 12071481823. The next prime is 12071481881. The reversal of 12071481845 is 54818417021.

It is not a de Polignac number, because 12071481845 - 2⁶ = 12071481781 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 10308110 + ... + 10309280.

It is an arithmetic number, because the mean of its divisors is an integer number (467810832).

Almost surely, 2^12071481845 is an apocalyptic number.

It is an amenable number.

12071481845 is a deficient number, since it is larger than the sum of its proper divisors (2898464779).

12071481845 is a wasteful number, since it uses less digits than its factorization.

12071481845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773.

The product of its (nonzero) digits is 71680, while the sum is 41.

Adding to 12071481845 its reverse (54818417021), we get a palindrome (66889898866).

The spelling of 12071481845 in words is "twelve billion, seventy-one million, four hundred eighty-one thousand, eight hundred forty-five".