12641444045 has 8 divisors (see below), whose sum is σ = 15225711360. Its totient is φ = 10075836240.

The previous prime is 12641444003. The next prime is 12641444107. The reversal of 12641444045 is 54044414621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12641444045 - 2³⁰ = 11567702221 is a prime.

It is a super-2 number, since 2×12641444045² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12641443996 and 12641444014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4663385 + ... + 4666094.

It is an arithmetic number, because the mean of its divisors is an integer number (1903213920).

Almost surely, 2^12641444045 is an apocalyptic number.

It is an amenable number.

12641444045 is a deficient number, since it is larger than the sum of its proper divisors (2584267315).

12641444045 is an equidigital number, since it uses as much as digits as its factorization.

12641444045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9329755.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 12641444045 its reverse (54044414621), we get a palindrome (66685858666).

The spelling of 12641444045 in words is "twelve billion, six hundred forty-one million, four hundred forty-four thousand, forty-five".