3858381838220 has 48 divisors (see below), whose sum is σ = 9972433063488. Its totient is φ = 1221114251520.

The previous prime is 3858381838211. The next prime is 3858381838307. The reversal of 3858381838220 is 228381838583.

3858381838220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3858381838220² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3858381838220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1059993191 + ... + 1059996830.

It is an arithmetic number, because the mean of its divisors is an integer number (207759022156).

Almost surely, 2^{3858381838220} is an apocalyptic number.

It is an amenable number.

3858381838220 is an abundant number, since it is smaller than the sum of its proper divisors (6114051225268).

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

3858381838220 is a wasteful number, since it uses less digits than its factorization.

3858381838220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119990050 (or 2119990048 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 59.

The spelling of 3858381838220 in words is "three trillion, eight hundred fifty-eight billion, three hundred eighty-one million, eight hundred thirty-eight thousand, two hundred twenty".