9944975907 has 16 divisors (see below), whose sum is σ = 14743252000. Its totient is φ = 6625504512.

The previous prime is 9944975897. The next prime is 9944975923. The reversal of 9944975907 is 7095794499.

9944975907 is a `hidden beast` number, since 9 + 94 + 497 + 59 + 0 + 7 = 666.

It is not a de Polignac number, because 9944975907 - 2⁷ = 9944975779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9944975977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83482 + ... + 163887.

It is an arithmetic number, because the mean of its divisors is an integer number (921453250).

Almost surely, 2^9944975907 is an apocalyptic number.

9944975907 is a deficient number, since it is larger than the sum of its proper divisors (4798276093).

9944975907 is a wasteful number, since it uses less digits than its factorization.

9944975907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248867 (or 248861 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The square root of 9944975907 is about 99724.5000338432. The cubic root of 9944975907 is about 2150.4758929969.

The spelling of 9944975907 in words is "nine billion, nine hundred forty-four million, nine hundred seventy-five thousand, nine hundred seven".