3981355570 has 32 divisors (see below), whose sum is σ = 7552673280. Its totient is φ = 1506913920.

The previous prime is 3981355549. The next prime is 3981355583. The reversal of 3981355570 is 755531893.

It is a self number, because there is not a number n which added to its sum of digits gives 3981355570.

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 15 ways as a sum of consecutive naturals, for example, 151830 + ... + 176110.

It is an arithmetic number, because the mean of its divisors is an integer number (236021040).

Almost surely, 2^3981355570 is an apocalyptic number.

3981355570 is a deficient number, since it is larger than the sum of its proper divisors (3571317710).

3981355570 is a wasteful number, since it uses less digits than its factorization.

3981355570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25170.

The product of its (nonzero) digits is 567000, while the sum is 46.

The square root of 3981355570 is about 63097.9838822129. The cubic root of 3981355570 is about 1584.9308610588.

The spelling of 3981355570 in words is "three billion, nine hundred eighty-one million, three hundred fifty-five thousand, five hundred seventy".