3971243909763 has 16 divisors (see below), whose sum is σ = 6335887719840. Its totient is φ = 2443842405792.

The previous prime is 3971243909761. The next prime is 3971243909767. The reversal of 3971243909763 is 3679093421793.

3971243909763 is a `hidden beast` number, since 3 + 97 + 12 + 4 + 390 + 97 + 63 = 666.

3971243909763 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3971243909763 - 2¹ = 3971243909761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3971243909763.

It is not an unprimeable number, because it can be changed into a prime (3971243909761) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5657042256 + ... + 5657042957.

It is an arithmetic number, because the mean of its divisors is an integer number (395992982490).

Almost surely, 2^{3971243909763} is an apocalyptic number.

3971243909763 is a deficient number, since it is larger than the sum of its proper divisors (2364643810077).

3971243909763 is a wasteful number, since it uses less digits than its factorization.

3971243909763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314085235 (or 11314085229 counting only the distinct ones).

The product of its (nonzero) digits is 46294416, while the sum is 63.

The spelling of 3971243909763 in words is "three trillion, nine hundred seventy-one billion, two hundred forty-three million, nine hundred nine thousand, seven hundred sixty-three".