14488666921 has 4 divisors (see below), whose sum is σ = 14512536832. Its totient is φ = 14464797012.

The previous prime is 14488666889. The next prime is 14488666937. The reversal of 14488666921 is 12966688441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12966688441 = 7 ⋅1852384063.

It is a cyclic number.

It is not a de Polignac number, because 14488666921 - 2⁵ = 14488666889 is a prime.

It is a super-3 number, since 3×14488666921³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14482666921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11934045 + ... + 11935258.

It is an arithmetic number, because the mean of its divisors is an integer number (3628134208).

Almost surely, 2^14488666921 is an apocalyptic number.

It is an amenable number.

14488666921 is a deficient number, since it is larger than the sum of its proper divisors (23869911).

14488666921 is an equidigital number, since it uses as much as digits as its factorization.

14488666921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23869910.

The product of its digits is 3981312, while the sum is 55.

The spelling of 14488666921 in words is "fourteen billion, four hundred eighty-eight million, six hundred sixty-six thousand, nine hundred twenty-one".