396738636668 has 36 divisors (see below), whose sum is σ = 763226910600. Its totient is φ = 180317116320.

The previous prime is 396738636659. The next prime is 396738636677. The reversal of 396738636668 is 866636837693.

It is an interprime number because it is at equal distance from previous prime (396738636659) and next prime (396738636677).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5359355 + ... + 5432877.

Almost surely, 2^396738636668 is an apocalyptic number.

It is an amenable number.

396738636668 is a deficient number, since it is larger than the sum of its proper divisors (366488273932).

396738636668 is a wasteful number, since it uses less digits than its factorization.

396738636668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84698 (or 84685 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 71.

The spelling of 396738636668 in words is "three hundred ninety-six billion, seven hundred thirty-eight million, six hundred thirty-six thousand, six hundred sixty-eight".