9721834662 has 64 divisors (see below), whose sum is σ = 20590433280. Its totient is φ = 3055094784.

The previous prime is 9721834643. The next prime is 9721834669. The reversal of 9721834662 is 2664381279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9721834669) 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, 4275958 + ... + 4278230.

It is an arithmetic number, because the mean of its divisors is an integer number (321725520).

Almost surely, 2^9721834662 is an apocalyptic number.

9721834662 is an abundant number, since it is smaller than the sum of its proper divisors (10868598618).

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

9721834662 is a wasteful number, since it uses less digits than its factorization.

9721834662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877.

The product of its digits is 870912, while the sum is 48.

The square root of 9721834662 is about 98599.3644097162. The cubic root of 9721834662 is about 2134.2702478473.

The spelling of 9721834662 in words is "nine billion, seven hundred twenty-one million, eight hundred thirty-four thousand, six hundred sixty-two".