9980644575 has 24 divisors (see below), whose sum is σ = 18001454976. Its totient is φ = 4839100000.

The previous prime is 9980644573. The next prime is 9980644579. The reversal of 9980644575 is 5754460899.

9980644575 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9980644575 - 2¹ = 9980644573 is a prime.

It is a super-2 number, since 2×9980644575² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980644573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6048051 + ... + 6049700.

It is an arithmetic number, because the mean of its divisors is an integer number (750060624).

Almost surely, 2^9980644575 is an apocalyptic number.

9980644575 is a deficient number, since it is larger than the sum of its proper divisors (8020810401).

9980644575 is a wasteful number, since it uses less digits than its factorization.

9980644575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12097775 (or 12097770 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The square root of 9980644575 is about 99903.1760005657. The cubic root of 9980644575 is about 2153.0437922963.

The spelling of 9980644575 in words is "nine billion, nine hundred eighty million, six hundred forty-four thousand, five hundred seventy-five".