3871683472672 has 48 divisors (see below), whose sum is σ = 7828718559480. Its totient is φ = 1883441922048.

The previous prime is 3871683472619. The next prime is 3871683472673. The reversal of 3871683472672 is 2762743861783.

It can be written as a sum of positive squares in 4 ways, for example, as 2702854369296 + 1168829103376 = 1644036^2 + 1081124^2 .

It is not an unprimeable number, because it can be changed into a prime (3871683472673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35699104 + ... + 35807392.

Almost surely, 2^{3871683472672} is an apocalyptic number.

3871683472672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3871683472672 is an abundant number, since it is smaller than the sum of its proper divisors (3957035086808).

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

3871683472672 is a wasteful number, since it uses less digits than its factorization.

3871683472672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138533 (or 138525 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 64.

The spelling of 3871683472672 in words is "three trillion, eight hundred seventy-one billion, six hundred eighty-three million, four hundred seventy-two thousand, six hundred seventy-two".