243448519497 has 8 divisors (see below), whose sum is σ = 338710983744. Its totient is φ = 155242534128.

The previous prime is 243448519471. The next prime is 243448519507. The reversal of 243448519497 is 794915844342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243448519497 - 2¹⁰ = 243448518473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243448519497.

It is not an unprimeable number, because it can be changed into a prime (243448519427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1764119638 + ... + 1764119775.

It is an arithmetic number, because the mean of its divisors is an integer number (42338872968).

Almost surely, 2^243448519497 is an apocalyptic number.

It is an amenable number.

243448519497 is a deficient number, since it is larger than the sum of its proper divisors (95262464247).

243448519497 is a wasteful number, since it uses less digits than its factorization.

243448519497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528239439.

The product of its digits is 34836480, while the sum is 60.

The spelling of 243448519497 in words is "two hundred forty-three billion, four hundred forty-eight million, five hundred nineteen thousand, four hundred ninety-seven".