3966634069847 has 8 divisors (see below), whose sum is σ = 4097046323712. Its totient is φ = 3836375335800.

The previous prime is 3966634069823. The next prime is 3966634069897. The reversal of 3966634069847 is 7489604366693.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3966634069847 - 2²⁰ = 3966633021271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966634069817) 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, 38327429 + ... + 38430782.

It is an arithmetic number, because the mean of its divisors is an integer number (512130790464).

Almost surely, 2^{3966634069847} is an apocalyptic number.

3966634069847 is a deficient number, since it is larger than the sum of its proper divisors (130412253865).

3966634069847 is a wasteful number, since it uses less digits than its factorization.

3966634069847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76759909.

The product of its (nonzero) digits is 846526464, while the sum is 71.

The spelling of 3966634069847 in words is "three trillion, nine hundred sixty-six billion, six hundred thirty-four million, sixty-nine thousand, eight hundred forty-seven".