3851844156 has 36 divisors (see below), whose sum is σ = 10309349232. Its totient is φ = 1208421504.

The previous prime is 3851844131. The next prime is 3851844181. The reversal of 3851844156 is 6514481583.

3851844156 is a `hidden beast` number, since 385 + 184 + 41 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (3851844131) and next prime (3851844181).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×3851844156² = 29673406804222704672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3146320 + ... + 3147543.

It is an arithmetic number, because the mean of its divisors is an integer number (286370812).

Almost surely, 2^3851844156 is an apocalyptic number.

3851844156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3851844156 is an abundant number, since it is smaller than the sum of its proper divisors (6457505076).

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

3851844156 is a wasteful number, since it uses less digits than its factorization.

3851844156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293890 (or 6293885 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 3851844156 is about 62063.2270833543. The cubic root of 3851844156 is about 1567.5554145073. Note that the first 3 decimals are identical.

The spelling of 3851844156 in words is "three billion, eight hundred fifty-one million, eight hundred forty-four thousand, one hundred fifty-six".