11856934933872 has 320 divisors, whose sum is σ = 37166725177344. Its totient is φ = 3179714641920.

The previous prime is 11856934933843. The next prime is 11856934933897. The reversal of 11856934933872 is 27833943965811.

It is a junction number, because it is equal to n+sod(n) for n = 11856934933797 and 11856934933806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5486780472 + ... + 5486782632.

Almost surely, 2^{11856934933872} is an apocalyptic number.

11856934933872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11856934933872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18583362588672).

11856934933872 is an abundant number, since it is smaller than the sum of its proper divisors (25309790243472).

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

11856934933872 is a wasteful number, since it uses less digits than its factorization.

11856934933872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376 (or 4370 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 69.

The spelling of 11856934933872 in words is "eleven trillion, eight hundred fifty-six billion, nine hundred thirty-four million, nine hundred thirty-three thousand, eight hundred seventy-two".