9720245118 has 8 divisors (see below), whose sum is σ = 19440490248. Its totient is φ = 3240081704.

The previous prime is 9720245113. The next prime is 9720245137. The reversal of 9720245118 is 8115420279.

It is a sphenic number, since it is the product of 3 distinct primes.

9720245118 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720245111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810020421 + ... + 810020432.

It is an arithmetic number, because the mean of its divisors is an integer number (2430061281).

Almost surely, 2^9720245118 is an apocalyptic number.

9720245118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9720245118 is a wasteful number, since it uses less digits than its factorization.

9720245118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620040858.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 9720245118 is about 98591.3034602951. The cubic root of 9720245118 is about 2134.1539220201.

The spelling of 9720245118 in words is "nine billion, seven hundred twenty million, two hundred forty-five thousand, one hundred eighteen".