9945970212 has 24 divisors (see below), whose sum is σ = 23587712512. Its totient is φ = 3260973600.

The previous prime is 9945970211. The next prime is 9945970217. The reversal of 9945970212 is 2120795499.

It is not an unprimeable number, because it can be changed into a prime (9945970211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6792964 + ... + 6794427.

Almost surely, 2^9945970212 is an apocalyptic number.

It is an amenable number.

9945970212 is an abundant number, since it is smaller than the sum of its proper divisors (13641742300).

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

9945970212 is a wasteful number, since it uses less digits than its factorization.

9945970212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13587459 (or 13587457 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 9945970212 is about 99729.4851686300. The cubic root of 9945970212 is about 2150.5475592565.

The spelling of 9945970212 in words is "nine billion, nine hundred forty-five million, nine hundred seventy thousand, two hundred twelve".