11983754819817 has 96 divisors (see below), whose sum is σ = 19323820953216. Its totient is φ = 7095494246400.

The previous prime is 11983754819791. The next prime is 11983754819849. The reversal of 11983754819817 is 71891845738911.

11983754819817 is a `hidden beast` number, since 1 + 1 + 98 + 375 + 4 + 81 + 98 + 1 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-11983754819817 is a prime.

It is a super-2 number, since 2×11983754819817² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11983754817817) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1642281513 + ... + 1642288809.

It is an arithmetic number, because the mean of its divisors is an integer number (201289801596).

Almost surely, 2^{11983754819817} is an apocalyptic number.

It is an amenable number.

11983754819817 is a deficient number, since it is larger than the sum of its proper divisors (7340066133399).

11983754819817 is a wasteful number, since it uses less digits than its factorization.

11983754819817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9511 (or 9508 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 72.

The spelling of 11983754819817 in words is "eleven trillion, nine hundred eighty-three billion, seven hundred fifty-four million, eight hundred nineteen thousand, eight hundred seventeen".