12518491423 has 8 divisors (see below), whose sum is σ = 12713500800. Its totient is φ = 12324690048.

The previous prime is 12518491421. The next prime is 12518491481. The reversal of 12518491423 is 32419481521.

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

It is a cyclic number.

It is not a de Polignac number, because 12518491423 - 2¹ = 12518491421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12518491421) 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, 281103 + ... + 322576.

It is an arithmetic number, because the mean of its divisors is an integer number (1589187600).

Almost surely, 2^12518491423 is an apocalyptic number.

12518491423 is a deficient number, since it is larger than the sum of its proper divisors (195009377).

12518491423 is an equidigital number, since it uses as much as digits as its factorization.

12518491423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604001.

The product of its digits is 69120, while the sum is 40.

The spelling of 12518491423 in words is "twelve billion, five hundred eighteen million, four hundred ninety-one thousand, four hundred twenty-three".