3853729829320 has 512 divisors, whose sum is σ = 11141900697600. Its totient is φ = 1168621977600.

The previous prime is 3853729829237. The next prime is 3853729829333. The reversal of 3853729829320 is 239289273583.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2790535030 + ... + 2790536410.

It is an arithmetic number, because the mean of its divisors is an integer number (21761524800).

Almost surely, 2^{3853729829320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3853729829320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5570950348800).

3853729829320 is an abundant number, since it is smaller than the sum of its proper divisors (7288170868280).

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

3853729829320 is a wasteful number, since it uses less digits than its factorization.

3853729829320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1865 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 3853729829320 in words is "three trillion, eight hundred fifty-three billion, seven hundred twenty-nine million, eight hundred twenty-nine thousand, three hundred twenty".