14644172057 has 4 divisors (see below), whose sum is σ = 15116564736. Its totient is φ = 14171779380.

The previous prime is 14644172041. The next prime is 14644172069. The reversal of 14644172057 is 75027144641.

14644172057 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14644172057 - 2⁴ = 14644172041 is a prime.

It is a super-2 number, since 2×14644172057² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14644172077) 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, 236196293 + ... + 236196354.

It is an arithmetic number, because the mean of its divisors is an integer number (3779141184).

Almost surely, 2^14644172057 is an apocalyptic number.

It is an amenable number.

14644172057 is a deficient number, since it is larger than the sum of its proper divisors (472392679).

14644172057 is an equidigital number, since it uses as much as digits as its factorization.

14644172057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472392678.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 14644172057 in words is "fourteen billion, six hundred forty-four million, one hundred seventy-two thousand, fifty-seven".