9945970210 has 64 divisors (see below), whose sum is σ = 20232374400. Its totient is φ = 3487052800.

The previous prime is 9945970171. The next prime is 9945970211. The reversal of 9945970210 is 120795499.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 2808621 + ... + 2812159.

It is an arithmetic number, because the mean of its divisors is an integer number (316130850).

Almost surely, 2^9945970210 is an apocalyptic number.

9945970210 is an abundant number, since it is smaller than the sum of its proper divisors (10286404190).

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

9945970210 is a wasteful number, since it uses less digits than its factorization.

9945970210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 9945970210 is about 99729.4851586029. The cubic root of 9945970210 is about 2150.5475591123.

The spelling of 9945970210 in words is "nine billion, nine hundred forty-five million, nine hundred seventy thousand, two hundred ten".