3851983959720 has 256 divisors, whose sum is σ = 13203025920000. Its totient is φ = 891202507776.

The previous prime is 3851983959713. The next prime is 3851983959749. The reversal of 3851983959720 is 279593891583.

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, 3252631 + ... + 4275929.

It is an arithmetic number, because the mean of its divisors is an integer number (51574320000).

Almost surely, 2^{3851983959720} is an apocalyptic number.

3851983959720 is a gapful number since it is divisible by the number (30) 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 3851983959720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6601512960000).

3851983959720 is an abundant number, since it is smaller than the sum of its proper divisors (9351041960280).

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

3851983959720 is a wasteful number, since it uses less digits than its factorization.

3851983959720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023472 (or 1023468 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 69.

The spelling of 3851983959720 in words is "three trillion, eight hundred fifty-one billion, nine hundred eighty-three million, nine hundred fifty-nine thousand, seven hundred twenty".