3946171613552 has 20 divisors (see below), whose sum is σ = 8737951430256. Its totient is φ = 1691216405760.

The previous prime is 3946171613533. The next prime is 3946171613581. The reversal of 3946171613552 is 2553161716493.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3946171613494 and 3946171613503.

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 3 ways as a sum of consecutive naturals, for example, 17616837449 + ... + 17616837672.

Almost surely, 2^{3946171613552} is an apocalyptic number.

It is an amenable number.

3946171613552 is an abundant number, since it is smaller than the sum of its proper divisors (4791779816704).

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

3946171613552 is a wasteful number, since it uses less digits than its factorization.

3946171613552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35233675136 (or 35233675130 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 53.

The spelling of 3946171613552 in words is "three trillion, nine hundred forty-six billion, one hundred seventy-one million, six hundred thirteen thousand, five hundred fifty-two".