11833854561368 has 128 divisors (see below), whose sum is σ = 27059354640000. Its totient is φ = 4743611486208.

The previous prime is 11833854561311. The next prime is 11833854561371. The reversal of 11833854561368 is 86316545833811.

It is a Cunningham number, because it is equal to 3440037²-1.

It is a super-2 number, since 2×11833854561368² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11833854561368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13330148 + ... + 14190156.

It is an arithmetic number, because the mean of its divisors is an integer number (211401208125).

Almost surely, 2^{11833854561368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11833854561368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13529677320000).

11833854561368 is an abundant number, since it is smaller than the sum of its proper divisors (15225500078632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11833854561368 is a wasteful number, since it uses less digits than its factorization.

11833854561368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860317 (or 860313 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 62.

The spelling of 11833854561368 in words is "eleven trillion, eight hundred thirty-three billion, eight hundred fifty-four million, five hundred sixty-one thousand, three hundred sixty-eight".