9431768663 has 24 divisors (see below), whose sum is σ = 10194170112. Its totient is φ = 8721128592.

The previous prime is 9431768659. The next prime is 9431768711. The reversal of 9431768663 is 3668671349.

It is not a de Polignac number, because 9431768663 - 2² = 9431768659 is a prime.

It is a super-2 number, since 2×9431768663² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9431768603) 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, 9959156 + ... + 9960102.

It is an arithmetic number, because the mean of its divisors is an integer number (424757088).

Almost surely, 2^9431768663 is an apocalyptic number.

9431768663 is a deficient number, since it is larger than the sum of its proper divisors (762401449).

9431768663 is a wasteful number, since it uses less digits than its factorization.

9431768663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619 (or 1600 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 53.

The square root of 9431768663 is about 97117.2933261631. The cubic root of 9431768663 is about 2112.8291498747.

The spelling of 9431768663 in words is "nine billion, four hundred thirty-one million, seven hundred sixty-eight thousand, six hundred sixty-three".