14028507989 has 4 divisors (see below), whose sum is σ = 14106013740. Its totient is φ = 13951002240.

The previous prime is 14028507979. The next prime is 14028508003. The reversal of 14028507989 is 98970582041.

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 155201764 + 13873306225 = 12458^2 + 117785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14028507989 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 14028507989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14028507919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38752604 + ... + 38752965.

It is an arithmetic number, because the mean of its divisors is an integer number (3526503435).

Almost surely, 2^14028507989 is an apocalyptic number.

It is an amenable number.

14028507989 is a deficient number, since it is larger than the sum of its proper divisors (77505751).

14028507989 is an equidigital number, since it uses as much as digits as its factorization.

14028507989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77505750.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 14028507989 in words is "fourteen billion, twenty-eight million, five hundred seven thousand, nine hundred eighty-nine".