3967665896296 has 8 divisors (see below), whose sum is σ = 7439373555570. Its totient is φ = 1983832948144.

The previous prime is 3967665896287. The next prime is 3967665896297. The reversal of 3967665896296 is 6926985667693.

It can be written as a sum of positive squares in only one way, i.e., 3506203820196 + 461462076100 = 1872486^2 + 679310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3967665896297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247979118511 + ... + 247979118526.

Almost surely, 2^{3967665896296} is an apocalyptic number.

It is an amenable number.

3967665896296 is a deficient number, since it is larger than the sum of its proper divisors (3471707659274).

3967665896296 is a wasteful number, since it uses less digits than its factorization.

3967665896296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495958237043 (or 495958237039 counting only the distinct ones).

The product of its digits is 9523422720, while the sum is 82.

The spelling of 3967665896296 in words is "three trillion, nine hundred sixty-seven billion, six hundred sixty-five million, eight hundred ninety-six thousand, two hundred ninety-six".