9721610486 has 24 divisors (see below), whose sum is σ = 17048494800. Its totient is φ = 4145459472.

The previous prime is 9721610453. The next prime is 9721610539. The reversal of 9721610486 is 6840161279.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229745 + ... + 268748.

It is an arithmetic number, because the mean of its divisors is an integer number (710353950).

Almost surely, 2^9721610486 is an apocalyptic number.

9721610486 is a deficient number, since it is larger than the sum of its proper divisors (7326884314).

9721610486 is a wasteful number, since it uses less digits than its factorization.

9721610486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498708 (or 498701 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 9721610486 is about 98598.2276007028. The cubic root of 9721610486 is about 2134.2538429930.

The spelling of 9721610486 in words is "nine billion, seven hundred twenty-one million, six hundred ten thousand, four hundred eighty-six".