3855831028838 has 32 divisors (see below), whose sum is σ = 6225915363840. Its totient is φ = 1785372282720.

The previous prime is 3855831028789. The next prime is 3855831028913. The reversal of 3855831028838 is 8388201385583.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 2986520 + ... + 4078107.

It is an arithmetic number, because the mean of its divisors is an integer number (194559855120).

Almost surely, 2^{3855831028838} is an apocalyptic number.

3855831028838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3855831028838 is a deficient number, since it is larger than the sum of its proper divisors (2370084335002).

3855831028838 is a wasteful number, since it uses less digits than its factorization.

3855831028838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064972.

The product of its (nonzero) digits is 44236800, while the sum is 62.

The spelling of 3855831028838 in words is "three trillion, eight hundred fifty-five billion, eight hundred thirty-one million, twenty-eight thousand, eight hundred thirty-eight".