3854846636172 has 168 divisors, whose sum is σ = 11623839897600. Its totient is φ = 1095230727648.

The previous prime is 3854846636167. The next prime is 3854846636209. The reversal of 3854846636172 is 2716366484583.

It is a happy number.

3854846636172 is a `hidden beast` number, since 3 + 8 + 5 + 4 + 8 + 4 + 6 + 6 + 3 + 617 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3126229 + ... + 4181267.

It is an arithmetic number, because the mean of its divisors is an integer number (69189523200).

Almost surely, 2^{3854846636172} 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 3854846636172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5811919948800).

3854846636172 is an abundant number, since it is smaller than the sum of its proper divisors (7768993261428).

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

3854846636172 is a wasteful number, since it uses less digits than its factorization.

3854846636172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055247 (or 1055230 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 63.

The spelling of 3854846636172 in words is "three trillion, eight hundred fifty-four billion, eight hundred forty-six million, six hundred thirty-six thousand, one hundred seventy-two".