14247469657 has 4 divisors (see below), whose sum is σ = 14319792036. Its totient is φ = 14175147280.

The previous prime is 14247469651. The next prime is 14247469661. The reversal of 14247469657 is 75696474241.

It is a happy number.

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 13768910281 + 478559376 = 117341^2 + 21876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14247469657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14247469598 and 14247469607.

It is not an unprimeable number, because it can be changed into a prime (14247469651) 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, 36160894 + ... + 36161287.

It is an arithmetic number, because the mean of its divisors is an integer number (3579948009).

Almost surely, 2^14247469657 is an apocalyptic number.

It is an amenable number.

14247469657 is a deficient number, since it is larger than the sum of its proper divisors (72322379).

14247469657 is an equidigital number, since it uses as much as digits as its factorization.

14247469657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72322378.

The product of its digits is 10160640, while the sum is 55.

The spelling of 14247469657 in words is "fourteen billion, two hundred forty-seven million, four hundred sixty-nine thousand, six hundred fifty-seven".