9664990127 has 16 divisors (see below), whose sum is σ = 11024788320. Its totient is φ = 8393628672.

The previous prime is 9664990099. The next prime is 9664990163. The reversal of 9664990127 is 7210994669.

It is not a de Polignac number, because 9664990127 - 2³² = 5370022831 is a prime.

It is a super-2 number, since 2×9664990127² (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 (9664990327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752324 + ... + 765062.

It is an arithmetic number, because the mean of its divisors is an integer number (689049270).

Almost surely, 2^9664990127 is an apocalyptic number.

9664990127 is a deficient number, since it is larger than the sum of its proper divisors (1359798193).

9664990127 is a wasteful number, since it uses less digits than its factorization.

9664990127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16202.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 9664990127 is about 98310.6816526058. The cubic root of 9664990127 is about 2130.1023503611.

The spelling of 9664990127 in words is "nine billion, six hundred sixty-four million, nine hundred ninety thousand, one hundred twenty-seven".