9945125567 has 8 divisors (see below), whose sum is σ = 10724073360. Its totient is φ = 9168168960.

The previous prime is 9945125557. The next prime is 9945125573. The reversal of 9945125567 is 7655215499.

9945125567 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 9945125567 - 2¹⁰ = 9945124543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9945125537) 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, 487409 + ... + 507402.

It is an arithmetic number, because the mean of its divisors is an integer number (1340509170).

Almost surely, 2^9945125567 is an apocalyptic number.

9945125567 is a deficient number, since it is larger than the sum of its proper divisors (778947793).

9945125567 is a wasteful number, since it uses less digits than its factorization.

9945125567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995593.

The product of its digits is 3402000, while the sum is 53.

The square root of 9945125567 is about 99725.2503982818. The cubic root of 9945125567 is about 2150.4866803066.

The spelling of 9945125567 in words is "nine billion, nine hundred forty-five million, one hundred twenty-five thousand, five hundred sixty-seven".