9965388630 has 32 divisors (see below), whose sum is σ = 24030298368. Its totient is φ = 2644840800.

The previous prime is 9965388623. The next prime is 9965388637. The reversal of 9965388630 is 368835699.

It is an interprime number because it is at equal distance from previous prime (9965388623) and next prime (9965388637).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9965388637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780826 + ... + 793485.

It is an arithmetic number, because the mean of its divisors is an integer number (750946824).

Almost surely, 2^9965388630 is an apocalyptic number.

9965388630 is an abundant number, since it is smaller than the sum of its proper divisors (14064909738).

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

9965388630 is a wasteful number, since it uses less digits than its factorization.

9965388630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574532.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The square root of 9965388630 is about 99826.7931469302. The cubic root of 9965388630 is about 2151.9462189669.

The spelling of 9965388630 in words is "nine billion, nine hundred sixty-five million, three hundred eighty-eight thousand, six hundred thirty".