3851686828836 has 144 divisors (see below), whose sum is σ = 12666416974848. Its totient is φ = 956940811200.

The previous prime is 3851686828751. The next prime is 3851686828877. The reversal of 3851686828836 is 6388286861583.

3851686828836 is a `hidden beast` number, since 3 + 8 + 516 + 8 + 6 + 8 + 28 + 83 + 6 = 666.

It is a super-2 number, since 2×3851686828836² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30142710 + ... + 30270221.

It is an arithmetic number, because the mean of its divisors is an integer number (87961228992).

Almost surely, 2^{3851686828836} is an apocalyptic number.

3851686828836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3851686828836 is an abundant number, since it is smaller than the sum of its proper divisors (8814730146012).

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

3851686828836 is a wasteful number, since it uses less digits than its factorization.

3851686828836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60412982 (or 60412977 counting only the distinct ones).

The product of its digits is 637009920, while the sum is 72.

The spelling of 3851686828836 in words is "three trillion, eight hundred fifty-one billion, six hundred eighty-six million, eight hundred twenty-eight thousand, eight hundred thirty-six".