9963689025 has 24 divisors (see below), whose sum is σ = 16551397984. Its totient is φ = 5288774400.

The previous prime is 9963689003. The next prime is 9963689051. The reversal of 9963689025 is 5209863699.

It is not a de Polignac number, because 9963689025 - 2¹³ = 9963680833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298984 + ... + 330633.

Almost surely, 2^9963689025 is an apocalyptic number.

It is an amenable number.

9963689025 is a deficient number, since it is larger than the sum of its proper divisors (6587708959).

9963689025 is a wasteful number, since it uses less digits than its factorization.

9963689025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629841 (or 629836 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 57.

The square root of 9963689025 is about 99818.2800142339. The cubic root of 9963689025 is about 2151.8238732950.

The spelling of 9963689025 in words is "nine billion, nine hundred sixty-three million, six hundred eighty-nine thousand, twenty-five".