9945906068 has 24 divisors (see below), whose sum is σ = 19902605184. Its totient is φ = 4260218400.

The previous prime is 9945906043. The next prime is 9945906071. The reversal of 9945906068 is 8606095499.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43328 + ... + 147543.

It is an arithmetic number, because the mean of its divisors is an integer number (829275216).

Almost surely, 2^9945906068 is an apocalyptic number.

It is an amenable number.

9945906068 is an abundant number, since it is smaller than the sum of its proper divisors (9956699116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9945906068 is a wasteful number, since it uses less digits than its factorization.

9945906068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192743 (or 192741 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 56.

The square root of 9945906068 is about 99729.1635781630. The cubic root of 9945906068 is about 2150.5429361104.

The spelling of 9945906068 in words is "nine billion, nine hundred forty-five million, nine hundred six thousand, sixty-eight".