3847977643612 has 6 divisors (see below), whose sum is σ = 6733960876328. Its totient is φ = 1923988821804.

The previous prime is 3847977643591. The next prime is 3847977643621. The reversal of 3847977643612 is 2163467797483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480997205448 + ... + 480997205455.

Almost surely, 2^{3847977643612} is an apocalyptic number.

It is an amenable number.

3847977643612 is a deficient number, since it is larger than the sum of its proper divisors (2885983232716).

3847977643612 is a wasteful number, since it uses less digits than its factorization.

3847977643612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961994410907 (or 961994410905 counting only the distinct ones).

The product of its digits is 256048128, while the sum is 67.

The spelling of 3847977643612 in words is "three trillion, eight hundred forty-seven billion, nine hundred seventy-seven million, six hundred forty-three thousand, six hundred twelve".