9720273488 has 20 divisors (see below), whose sum is σ = 18842374740. Its totient is φ = 4857725184.

The previous prime is 9720273487. The next prime is 9720273499. The reversal of 9720273488 is 8843720279.

It can be written as a sum of positive squares in 2 ways, for example, as 9496112704 + 224160784 = 97448^2 + 14972^2 .

It is a super-2 number, since 2×9720273488² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720273487) 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, 117245 + ... + 182172.

It is an arithmetic number, because the mean of its divisors is an integer number (942118737).

Almost surely, 2^9720273488 is an apocalyptic number.

It is an amenable number.

9720273488 is a deficient number, since it is larger than the sum of its proper divisors (9122101252).

9720273488 is a wasteful number, since it uses less digits than its factorization.

9720273488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301454 (or 301448 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 9720273488 is about 98591.4473369775. The cubic root of 9720273488 is about 2134.1559983013.

The spelling of 9720273488 in words is "nine billion, seven hundred twenty million, two hundred seventy-three thousand, four hundred eighty-eight".