13818881313827 has 16 divisors (see below), whose sum is σ = 14905658275200. Its totient is φ = 12771438750720.

The previous prime is 13818881313799. The next prime is 13818881313833. The reversal of 13818881313827 is 72831318881831.

It is a happy number.

It is not a de Polignac number, because 13818881313827 - 2⁶ = 13818881313763 is a prime.

It is a super-2 number, since 2×13818881313827² (a number of 27 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 13818881313827.

It is not an unprimeable number, because it can be changed into a prime (13818881313857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46903838 + ... + 47197539.

It is an arithmetic number, because the mean of its divisors is an integer number (931603642200).

Almost surely, 2^{13818881313827} is an apocalyptic number.

13818881313827 is a deficient number, since it is larger than the sum of its proper divisors (1086776961373).

13818881313827 is a wasteful number, since it uses less digits than its factorization.

13818881313827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94101586.

The product of its digits is 12386304, while the sum is 62.

The spelling of 13818881313827 in words is "thirteen trillion, eight hundred eighteen billion, eight hundred eighty-one million, three hundred thirteen thousand, eight hundred twenty-seven".