12365543398 has 8 divisors (see below), whose sum is σ = 19975108608. Its totient is φ = 5707173864.

The previous prime is 12365543371. The next prime is 12365543459. The reversal of 12365543398 is 89334556321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237798886 + ... + 237798937.

It is an arithmetic number, because the mean of its divisors is an integer number (2496888576).

Almost surely, 2^12365543398 is an apocalyptic number.

12365543398 is a deficient number, since it is larger than the sum of its proper divisors (7609565210).

12365543398 is a wasteful number, since it uses less digits than its factorization.

12365543398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475597838.

The product of its digits is 2332800, while the sum is 49.

The spelling of 12365543398 in words is "twelve billion, three hundred sixty-five million, five hundred forty-three thousand, three hundred ninety-eight".