9821430064 has 10 divisors (see below), whose sum is σ = 19029020780. Its totient is φ = 4910715024.

The previous prime is 9821430061. The next prime is 9821430079. The reversal of 9821430064 is 4600341289.

It is not an unprimeable number, because it can be changed into a prime (9821430061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306919674 + ... + 306919705.

It is an arithmetic number, because the mean of its divisors is an integer number (1902902078).

Almost surely, 2^9821430064 is an apocalyptic number.

It is an amenable number.

9821430064 is a deficient number, since it is larger than the sum of its proper divisors (9207590716).

9821430064 is a wasteful number, since it uses less digits than its factorization.

9821430064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613839387 (or 613839381 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 9821430064 is about 99103.1284269069. The cubic root of 9821430064 is about 2141.5336826638.

The spelling of 9821430064 in words is "nine billion, eight hundred twenty-one million, four hundred thirty thousand, sixty-four".