9963535439 has 48 divisors (see below), whose sum is σ = 12679317504. Its totient is φ = 7738473600.

The previous prime is 9963535433. The next prime is 9963535447. The reversal of 9963535439 is 9345353699.

It is not a de Polignac number, because 9963535439 - 2¹⁶ = 9963469903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963535433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1321709 + ... + 1329225.

It is an arithmetic number, because the mean of its divisors is an integer number (264152448).

Almost surely, 2^9963535439 is an apocalyptic number.

9963535439 is a deficient number, since it is larger than the sum of its proper divisors (2715782065).

9963535439 is a wasteful number, since it uses less digits than its factorization.

9963535439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608 (or 7595 counting only the distinct ones).

The product of its digits is 11809800, while the sum is 56.

The square root of 9963535439 is about 99817.5106832464. The cubic root of 9963535439 is about 2151.8128167570.

The spelling of 9963535439 in words is "nine billion, nine hundred sixty-three million, five hundred thirty-five thousand, four hundred thirty-nine".