9363973323721 has 9 divisors (see below), whose sum is σ = 9544150930741. Its totient is φ = 9187135458592.

The previous prime is 9363973323671. The next prime is 9363973323739. The reversal of 9363973323721 is 1273233793639.

The square root of 9363973323721 is 3060061.

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 444074299321 + 8919899024400 = 666389^2 + 2986620^2 .

It is not a de Polignac number, because 9363973323721 - 2²³ = 9363964935113 is a prime.

It is a super-2 number, since 2×9363973323721² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9363973323751) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 162154365 + ... + 162212101.

Almost surely, 2^{9363973323721} is an apocalyptic number.

9363973323721 is the 3060061-st square number.

9363973323721 is the 1530031-st centered octagonal number.

It is an amenable number.

9363973323721 is a deficient number, since it is larger than the sum of its proper divisors (180177607020).

9363973323721 is an frugal number, since it uses more digits than its factorization.

9363973323721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115580 (or 57790 counting only the distinct ones).

The product of its digits is 23147208, while the sum is 58.

The spelling of 9363973323721 in words is "nine trillion, three hundred sixty-three billion, nine hundred seventy-three million, three hundred twenty-three thousand, seven hundred twenty-one".