11843845537851 has 24 divisors (see below), whose sum is σ = 17546334283296. Its totient is φ = 7693953932160.

The previous prime is 11843845537817. The next prime is 11843845537861. The reversal of 11843845537851 is 15873554834811.

11843845537851 is a `hidden beast` number, since 1 + 1 + 8 + 4 + 3 + 8 + 4 + 553 + 78 + 5 + 1 = 666.

It is not a de Polignac number, because 11843845537851 - 2¹⁹ = 11843845013563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11843845537861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19196400 + ... + 19803773.

It is an arithmetic number, because the mean of its divisors is an integer number (731097261804).

Almost surely, 2^{11843845537851} is an apocalyptic number.

11843845537851 is a deficient number, since it is larger than the sum of its proper divisors (5702488745445).

11843845537851 is a wasteful number, since it uses less digits than its factorization.

11843845537851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39001043 (or 39001040 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 63.

The spelling of 11843845537851 in words is "eleven trillion, eight hundred forty-three billion, eight hundred forty-five million, five hundred thirty-seven thousand, eight hundred fifty-one".