14215256641 has 4 divisors (see below), whose sum is σ = 14221331284. Its totient is φ = 14209182000.

The previous prime is 14215256621. The next prime is 14215256647. The reversal of 14215256641 is 14665251241.

14215256641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4716805041 + 9498451600 = 68679^2 + 97460^2 .

It is a cyclic number.

It is not a de Polignac number, because 14215256641 - 2²¹ = 14213159489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14215256641.

It is not an unprimeable number, because it can be changed into a prime (14215256647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033810 + ... + 3038491.

It is an arithmetic number, because the mean of its divisors is an integer number (3555332821).

Almost surely, 2^14215256641 is an apocalyptic number.

It is an amenable number.

14215256641 is a deficient number, since it is larger than the sum of its proper divisors (6074643).

14215256641 is an equidigital number, since it uses as much as digits as its factorization.

14215256641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074642.

The product of its digits is 57600, while the sum is 37.

The spelling of 14215256641 in words is "fourteen billion, two hundred fifteen million, two hundred fifty-six thousand, six hundred forty-one".