3838312861220 has 48 divisors (see below), whose sum is σ = 8611328832960. Its totient is φ = 1432809316224.

The previous prime is 3838312861157. The next prime is 3838312861223. The reversal of 3838312861220 is 221682138383.

It is not an unprimeable number, because it can be changed into a prime (3838312861223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75353819 + ... + 75404738.

It is an arithmetic number, because the mean of its divisors is an integer number (179402684020).

Almost surely, 2^{3838312861220} is an apocalyptic number.

It is an amenable number.

3838312861220 is an abundant number, since it is smaller than the sum of its proper divisors (4773015971740).

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

3838312861220 is a wasteful number, since it uses less digits than its factorization.

3838312861220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150758652 (or 150758650 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 3838312861220 in words is "three trillion, eight hundred thirty-eight billion, three hundred twelve million, eight hundred sixty-one thousand, two hundred twenty".