9963738009 has 6 divisors (see below), whose sum is σ = 14392066026. Its totient is φ = 6642492000.

The previous prime is 9963738007. The next prime is 9963738011. The reversal of 9963738009 is 9008373699.

It is an interprime number because it is at equal distance from previous prime (9963738007) and next prime (9963738011).

It can be written as a sum of positive squares in only one way, i.e., 8676363609 + 1287374400 = 93147^2 + 35880^2 .

It is not a de Polignac number, because 9963738009 - 2¹ = 9963738007 is a prime.

It is a super-2 number, since 2×9963738009² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9963738007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553540992 + ... + 553541009.

It is an arithmetic number, because the mean of its divisors is an integer number (2398677671).

Almost surely, 2^9963738009 is an apocalyptic number.

It is an amenable number.

9963738009 is a deficient number, since it is larger than the sum of its proper divisors (4428328017).

9963738009 is a wasteful number, since it uses less digits than its factorization.

9963738009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107082007 (or 1107082004 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 9963738009 is about 99818.5253798111. The cubic root of 9963738009 is about 2151.8273995916.

The spelling of 9963738009 in words is "nine billion, nine hundred sixty-three million, seven hundred thirty-eight thousand, nine".