963568640961 has 16 divisors (see below), whose sum is σ = 1427667561600. Its totient is φ = 642307785264.

The previous prime is 963568640941. The next prime is 963568640971. The reversal of 963568640961 is 169046865369.

963568640961 is a `hidden beast` number, since 9 + 6 + 3 + 568 + 6 + 4 + 0 + 9 + 61 = 666.

It is not a de Polignac number, because 963568640961 - 2¹¹ = 963568638913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (963568640941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1732501 + ... + 2220066.

It is an arithmetic number, because the mean of its divisors is an integer number (89229222600).

Almost surely, 2^963568640961 is an apocalyptic number.

It is an amenable number.

963568640961 is a deficient number, since it is larger than the sum of its proper divisors (464098920639).

963568640961 is a wasteful number, since it uses less digits than its factorization.

963568640961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961605 (or 3961599 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 963568640961 in words is "nine hundred sixty-three billion, five hundred sixty-eight million, six hundred forty thousand, nine hundred sixty-one".