3851913312 has 192 divisors, whose sum is σ = 12811296960. Its totient is φ = 1115430912.

The previous prime is 3851913271. The next prime is 3851913409. The reversal of 3851913312 is 2133191583.

3851913312 is a `hidden beast` number, since 3 + 8 + 519 + 133 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 180858 + ... + 201030.

It is an arithmetic number, because the mean of its divisors is an integer number (66725505).

Almost surely, 2^3851913312 is an apocalyptic number.

3851913312 is a gapful number since it is divisible by the number (32) 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 3851913312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6405648480).

3851913312 is an abundant number, since it is smaller than the sum of its proper divisors (8959383648).

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

3851913312 is a wasteful number, since it uses less digits than its factorization.

3851913312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20222 (or 20208 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 3851913312 is about 62063.7842223627. The cubic root of 3851913312 is about 1567.5647957464.

The spelling of 3851913312 in words is "three billion, eight hundred fifty-one million, nine hundred thirteen thousand, three hundred twelve".