3520067173812 has 54 divisors (see below), whose sum is σ = 10350673718658. Its totient is φ = 1005733477728.

The previous prime is 3520067173801. The next prime is 3520067173813. The reversal of 3520067173812 is 2183717600253.

3520067173812 is a `hidden beast` number, since 3 + 5 + 200 + 67 + 1 + 7 + 381 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3044347977636 + 475719196176 = 1744806^2 + 689724^2 .

It is a super-2 number, since 2×3520067173812² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520067173813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 997749703 + ... + 997753230.

Almost surely, 2^{3520067173812} is an apocalyptic number.

It is an amenable number.

3520067173812 is an abundant number, since it is smaller than the sum of its proper divisors (6830606544846).

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

3520067173812 is a wasteful number, since it uses less digits than its factorization.

3520067173812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995502957 (or 1995502945 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 3520067173812 in words is "three trillion, five hundred twenty billion, sixty-seven million, one hundred seventy-three thousand, eight hundred twelve".