9809061712 has 40 divisors (see below), whose sum is σ = 20367374976. Its totient is φ = 4564492416.

The previous prime is 9809061709. The next prime is 9809061719. The reversal of 9809061712 is 2171609089.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9809061719) 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, 346588 + ... + 373819.

Almost surely, 2^9809061712 is an apocalyptic number.

9809061712 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9809061712 is an abundant number, since it is smaller than the sum of its proper divisors (10558313264).

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

9809061712 is a wasteful number, since it uses less digits than its factorization.

9809061712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720475 (or 720469 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 9809061712 is about 99040.7073480395. The cubic root of 9809061712 is about 2140.6343442211.

The spelling of 9809061712 in words is "nine billion, eight hundred nine million, sixty-one thousand, seven hundred twelve".