9737944644 has 12 divisors (see below), whose sum is σ = 22721870864. Its totient is φ = 3245981544.

The previous prime is 9737944639. The next prime is 9737944649. The reversal of 9737944644 is 4464497379.

It is an interprime number because it is at equal distance from previous prime (9737944639) and next prime (9737944649).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×9737944644³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9737944649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405747682 + ... + 405747705.

Almost surely, 2^9737944644 is an apocalyptic number.

It is an amenable number.

9737944644 is an abundant number, since it is smaller than the sum of its proper divisors (12983926220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9737944644 is a wasteful number, since it uses less digits than its factorization.

9737944644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811495394 (or 811495392 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 57.

The square root of 9737944644 is about 98681.0247413351. The cubic root of 9737944644 is about 2135.4484918710.

The spelling of 9737944644 in words is "nine billion, seven hundred thirty-seven million, nine hundred forty-four thousand, six hundred forty-four".