12538416235 has 8 divisors (see below), whose sum is σ = 15195071376. Its totient is φ = 9931418400.

The previous prime is 12538416229. The next prime is 12538416257. The reversal of 12538416235 is 53261483521.

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

It is not a de Polignac number, because 12538416235 - 2¹⁵ = 12538383467 is a prime.

It is a super-3 number, since 3×12538416235³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12413769 + ... + 12414778.

It is an arithmetic number, because the mean of its divisors is an integer number (1899383922).

Almost surely, 2^12538416235 is an apocalyptic number.

12538416235 is a deficient number, since it is larger than the sum of its proper divisors (2656655141).

12538416235 is a wasteful number, since it uses less digits than its factorization.

12538416235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24828653.

The product of its digits is 172800, while the sum is 40.

Adding to 12538416235 its reverse (53261483521), we get a palindrome (65799899756).

The spelling of 12538416235 in words is "twelve billion, five hundred thirty-eight million, four hundred sixteen thousand, two hundred thirty-five".