9963681908 has 12 divisors (see below), whose sum is σ = 17682027552. Its totient is φ = 4911674040.

The previous prime is 9963681877. The next prime is 9963681913. The reversal of 9963681908 is 8091863699.

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, 17541410 + ... + 17541977.

It is an arithmetic number, because the mean of its divisors is an integer number (1473502296).

Almost surely, 2^9963681908 is an apocalyptic number.

It is an amenable number.

9963681908 is a deficient number, since it is larger than the sum of its proper divisors (7718345644).

9963681908 is a wasteful number, since it uses less digits than its factorization.

9963681908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35083462 (or 35083460 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 59.

The square root of 9963681908 is about 99818.2443644447. The cubic root of 9963681908 is about 2151.8233609502.

The spelling of 9963681908 in words is "nine billion, nine hundred sixty-three million, six hundred eighty-one thousand, nine hundred eight".