3995787121344 has 84 divisors (see below), whose sum is σ = 11453492443744. Its totient is φ = 1331895301632.

The previous prime is 3995787121331. The next prime is 3995787121349. The reversal of 3995787121344 is 4431217875993.

3995787121344 is a `hidden beast` number, since 3 + 9 + 9 + 578 + 7 + 1 + 2 + 13 + 44 = 666.

It is not an unprimeable number, because it can be changed into a prime (3995787121349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34436994 + ... + 34552830.

Almost surely, 2^{3995787121344} is an apocalyptic number.

It is an amenable number.

3995787121344 is an abundant number, since it is smaller than the sum of its proper divisors (7457705322400).

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

3995787121344 is a wasteful number, since it uses less digits than its factorization.

3995787121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175742 (or 175729 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 3995787121344 in words is "three trillion, nine hundred ninety-five billion, seven hundred eighty-seven million, one hundred twenty-one thousand, three hundred forty-four".