12435644444641 has 8 divisors (see below), whose sum is σ = 13566249022464. Its totient is φ = 11305055107920.

The previous prime is 12435644444627. The next prime is 12435644444653. The reversal of 12435644444641 is 14644444653421.

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

It is a cyclic number.

It is not a de Polignac number, because 12435644444641 - 2⁴¹ = 10236621189089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12435644444941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2069665 + ... + 5399518.

It is an arithmetic number, because the mean of its divisors is an integer number (1695781127808).

Almost surely, 2^{12435644444641} is an apocalyptic number.

12435644444641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12435644444641 is a deficient number, since it is larger than the sum of its proper divisors (1130604577823).

12435644444641 is a wasteful number, since it uses less digits than its factorization.

12435644444641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620551.

The product of its digits is 17694720, while the sum is 52.

The spelling of 12435644444641 in words is "twelve trillion, four hundred thirty-five billion, six hundred forty-four million, four hundred forty-four thousand, six hundred forty-one".