3916943668 has 12 divisors (see below), whose sum is σ = 7477801632. Its totient is φ = 1780428920.

The previous prime is 3916943621. The next prime is 3916943683. The reversal of 3916943668 is 8663496193.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44510680 + ... + 44510767.

It is an arithmetic number, because the mean of its divisors is an integer number (623150136).

Almost surely, 2^3916943668 is an apocalyptic number.

It is an amenable number.

3916943668 is a deficient number, since it is larger than the sum of its proper divisors (3560857964).

3916943668 is a wasteful number, since it uses less digits than its factorization.

3916943668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89021462 (or 89021460 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 55.

The square root of 3916943668 is about 62585.4908744830. The cubic root of 3916943668 is about 1576.3371418565.

The spelling of 3916943668 in words is "three billion, nine hundred sixteen million, nine hundred forty-three thousand, six hundred sixty-eight".