12438623774541 has 8 divisors (see below), whose sum is σ = 17119826270464. Its totient is φ = 8024918564160.

The previous prime is 12438623774519. The next prime is 12438623774581. The reversal of 12438623774541 is 14547732683421.

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

It is not a de Polignac number, because 12438623774541 - 2¹⁹ = 12438623250253 is a prime.

It is a super-2 number, since 2×12438623774541² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438623774581) 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, 66874321276 + ... + 66874321461.

It is an arithmetic number, because the mean of its divisors is an integer number (2139978283808).

Almost surely, 2^{12438623774541} is an apocalyptic number.

It is an amenable number.

12438623774541 is a deficient number, since it is larger than the sum of its proper divisors (4681202495923).

12438623774541 is a wasteful number, since it uses less digits than its factorization.

12438623774541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133748642771.

The product of its digits is 27095040, while the sum is 57.

The spelling of 12438623774541 in words is "twelve trillion, four hundred thirty-eight billion, six hundred twenty-three million, seven hundred seventy-four thousand, five hundred forty-one".