12438963019 has 8 divisors (see below), whose sum is σ = 15052190688. Its totient is φ = 10034793600.

The previous prime is 12438962983. The next prime is 12438963041. The reversal of 12438963019 is 91036983421.

It is a happy number.

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 12438963019 - 2¹¹ = 12438960971 is a prime.

It is a super-2 number, since 2×12438963019² (a number of 21 digits) contains 22 as substring.

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 12438963019.

It is not an unprimeable number, because it can be changed into a prime (12438963619) 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, 52264432 + ... + 52264669.

It is an arithmetic number, because the mean of its divisors is an integer number (1881523836).

Almost surely, 2^12438963019 is an apocalyptic number.

12438963019 is a deficient number, since it is larger than the sum of its proper divisors (2613227669).

12438963019 is a wasteful number, since it uses less digits than its factorization.

12438963019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104529125.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 12438963019 in words is "twelve billion, four hundred thirty-eight million, nine hundred sixty-three thousand, nineteen".