3847358512812 has 48 divisors (see below), whose sum is σ = 9505383616512. Its totient is φ = 1206996030720.

The previous prime is 3847358512721. The next prime is 3847358512847. The reversal of 3847358512812 is 2182158537483.

It is a super-2 number, since 2×3847358512812² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20548137 + ... + 20734527.

It is an arithmetic number, because the mean of its divisors is an integer number (198028825344).

Almost surely, 2^{3847358512812} is an apocalyptic number.

It is an amenable number.

3847358512812 is an abundant number, since it is smaller than the sum of its proper divisors (5658025103700).

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

3847358512812 is a wasteful number, since it uses less digits than its factorization.

3847358512812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287598 (or 287596 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 57.

The spelling of 3847358512812 in words is "three trillion, eight hundred forty-seven billion, three hundred fifty-eight million, five hundred twelve thousand, eight hundred twelve".