9720357552 has 30 divisors (see below), whose sum is σ = 27203501052. Its totient is φ = 3240119136.

The previous prime is 9720357539. The next prime is 9720357583. The reversal of 9720357552 is 2557530279.

9720357552 is a `hidden beast` number, since 9 + 7 + 20 + 3 + 575 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 9720357498 and 9720357507.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 33751098 + ... + 33751385.

Almost surely, 2^9720357552 is an apocalyptic number.

It is an amenable number.

9720357552 is an abundant number, since it is smaller than the sum of its proper divisors (17483143500).

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

9720357552 is a wasteful number, since it uses less digits than its factorization.

9720357552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67502497 (or 67502488 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 45.

The square root of 9720357552 is about 98591.8736610680. The cubic root of 9720357552 is about 2134.1621505690.

The spelling of 9720357552 in words is "nine billion, seven hundred twenty million, three hundred fifty-seven thousand, five hundred fifty-two".