9873703640025 has 81 divisors (see below), whose sum is σ = 17773391742717. Its totient is φ = 5239756382400.

The previous prime is 9873703640011. The next prime is 9873703640029. The reversal of 9873703640025 is 5200463073789.

The square root of 9873703640025 is 3142245.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3829422385881 + 6044281254144 = 1956891^2 + 2458512^2 .

It is not a de Polignac number, because 9873703640025 - 2⁷ = 9873703639897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9873703640029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 12773225539 + ... + 12773226311.

Almost surely, 2^{9873703640025} is an apocalyptic number.

9873703640025 is the 3142245-th square number.

9873703640025 is the 1571123-rd centered octagonal number.

It is an amenable number.

9873703640025 is a deficient number, since it is larger than the sum of its proper divisors (7899688102692).

9873703640025 is an frugal number, since it uses more digits than its factorization.

9873703640025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 9873703640025 in words is "nine trillion, eight hundred seventy-three billion, seven hundred three million, six hundred forty thousand, twenty-five".