9099024898681 has 9 divisors (see below), whose sum is σ = 9603186489423. Its totient is φ = 8620074555120.

The previous prime is 9099024898679. The next prime is 9099024898739. The reversal of 9099024898681 is 1868984209909.

The square root of 9099024898681 is 3016459.

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

It can be written as a sum of positive squares in only one way, i.e., 568653236281 + 8530371662400 = 754091^2 + 2920680^2 .

It is not a de Polignac number, because 9099024898681 - 2¹ = 9099024898679 is a prime.

It is a super-2 number, since 2×9099024898681² (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 (9099024898981) 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, 57233341 + ... + 57392101.

It is an arithmetic number, because the mean of its divisors is an integer number (1067020721047).

Almost surely, 2^{9099024898681} is an apocalyptic number.

9099024898681 is the 3016459-th square number.

9099024898681 is the 1508230-th centered octagonal number.

It is an amenable number.

9099024898681 is a deficient number, since it is larger than the sum of its proper divisors (504161590742).

9099024898681 is an frugal number, since it uses more digits than its factorization.

9099024898681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317560 (or 158780 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 73.

The spelling of 9099024898681 in words is "nine trillion, ninety-nine billion, twenty-four million, eight hundred ninety-eight thousand, six hundred eighty-one".