3998575343850 has 96 divisors (see below), whose sum is σ = 9954791066880. Its totient is φ = 1062167850240.

The previous prime is 3998575343849. The next prime is 3998575343923. The reversal of 3998575343850 is 583435758993.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205371916 + ... + 205391384.

It is an arithmetic number, because the mean of its divisors is an integer number (103695740280).

Almost surely, 2^{3998575343850} is an apocalyptic number.

3998575343850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3998575343850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4977395533440).

3998575343850 is an abundant number, since it is smaller than the sum of its proper divisors (5956215723030).

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

3998575343850 is a wasteful number, since it uses less digits than its factorization.

3998575343850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24704 (or 24699 counting only the distinct ones).

The product of its (nonzero) digits is 489888000, while the sum is 69.

The spelling of 3998575343850 in words is "three trillion, nine hundred ninety-eight billion, five hundred seventy-five million, three hundred forty-three thousand, eight hundred fifty".