3885381973850 has 24 divisors (see below), whose sum is σ = 7782718970460. Its totient is φ = 1434602574720.

The previous prime is 3885381973841. The next prime is 3885381973901. The reversal of 3885381973850 is 583791835883.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 494801103241 + 3390580870609 = 703421^2 + 1841353^2 .

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

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, 2988754715 + ... + 2988756014.

Almost surely, 2^{3885381973850} is an apocalyptic number.

3885381973850 is an abundant number, since it is smaller than the sum of its proper divisors (3897336996610).

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

3885381973850 is a wasteful number, since it uses less digits than its factorization.

3885381973850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977510754 (or 5977510749 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 68.

The spelling of 3885381973850 in words is "three trillion, eight hundred eighty-five billion, three hundred eighty-one million, nine hundred seventy-three thousand, eight hundred fifty".