9963145423 has 8 divisors (see below), whose sum is σ = 12421584000. Its totient is φ = 7763489880.

The previous prime is 9963145319. The next prime is 9963145429. The reversal of 9963145423 is 3245413699.

9963145423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9963145423 - 2¹³ = 9963137231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963145429) 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 7 ways as a sum of consecutive naturals, for example, 64695673 + ... + 64695826.

It is an arithmetic number, because the mean of its divisors is an integer number (1552698000).

Almost surely, 2^9963145423 is an apocalyptic number.

9963145423 is a deficient number, since it is larger than the sum of its proper divisors (2458438577).

9963145423 is a wasteful number, since it uses less digits than its factorization.

9963145423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129391517.

The product of its digits is 699840, while the sum is 46.

The square root of 9963145423 is about 99815.5570189337. The cubic root of 9963145423 is about 2151.7847392945.

The spelling of 9963145423 in words is "nine billion, nine hundred sixty-three million, one hundred forty-five thousand, four hundred twenty-three".