3946396794916 has 27 divisors (see below), whose sum is σ = 6926255996947. Its totient is φ = 1967483081600.

The previous prime is 3946396794887. The next prime is 3946396794917. The reversal of 3946396794916 is 6194976936493.

The square root of 3946396794916 is 1986554.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1589238422500 + 2357158372416 = 1260650^2 + 1535304^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3946396794917) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1593215070 + ... + 1593217546.

Almost surely, 2^{3946396794916} is an apocalyptic number.

3946396794916 is the 1986554-th square number.

It is an amenable number.

3946396794916 is a deficient number, since it is larger than the sum of its proper divisors (2979859202031).

3946396794916 is an frugal number, since it uses more digits than its factorization.

3946396794916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760 (or 2880 counting only the distinct ones).

The product of its digits is 1428513408, while the sum is 76.

The spelling of 3946396794916 in words is "three trillion, nine hundred forty-six billion, three hundred ninety-six million, seven hundred ninety-four thousand, nine hundred sixteen".