9944967856 has 10 divisors (see below), whose sum is σ = 19268375252. Its totient is φ = 4972483920.

The previous prime is 9944967841. The next prime is 9944967863. The reversal of 9944967856 is 6587694499.

It is a junction number, because it is equal to n+sod(n) for n = 9944967791 and 9944967800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310780230 + ... + 310780261.

Almost surely, 2^9944967856 is an apocalyptic number.

It is an amenable number.

9944967856 is a deficient number, since it is larger than the sum of its proper divisors (9323407396).

9944967856 is a wasteful number, since it uses less digits than its factorization.

9944967856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621560499 (or 621560493 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 67.

The square root of 9944967856 is about 99724.4596676262. The cubic root of 9944967856 is about 2150.4753126876.

The spelling of 9944967856 in words is "nine billion, nine hundred forty-four million, nine hundred sixty-seven thousand, eight hundred fifty-six".