9307020649081 has 9 divisors (see below), whose sum is σ = 9617029569669. Its totient is φ = 9006702654300.

The previous prime is 9307020649067. The next prime is 9307020649127. The reversal of 9307020649081 is 1809460207039.

The square root of 9307020649081 is 3050741.

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

It is not a de Polignac number, because 9307020649081 - 2³⁷ = 9169581695609 is a prime.

It is a super-3 number, since 3×9307020649081³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9307020649681) 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, 94523766 + ... + 94622176.

Almost surely, 2^{9307020649081} is an apocalyptic number.

9307020649081 is the 3050741-st square number.

9307020649081 is the 1525371-st centered octagonal number.

It is an amenable number.

9307020649081 is a deficient number, since it is larger than the sum of its proper divisors (310008920588).

9307020649081 is an frugal number, since it uses more digits than its factorization.

9307020649081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196884 (or 98442 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

Multiplying 9307020649081 by its sum of digits (49), we get a square (456044011804969 = 21355187²).

The spelling of 9307020649081 in words is "nine trillion, three hundred seven billion, twenty million, six hundred forty-nine thousand, eighty-one".