9920465204329 has 3 divisors (see below), whose sum is σ = 9920468354007. Its totient is φ = 9920462054652.

The previous prime is 9920465204327. The next prime is 9920465204339. The reversal of 9920465204329 is 9234025640299.

The square root of 9920465204329 is 3149677.

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

9920465204329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9887723025625 + 32742178704 = 3144475^2 + 180948^2 .

It is not a de Polignac number, because 9920465204329 - 2¹ = 9920465204327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9920465204329.

It is not an unprimeable number, because it can be changed into a prime (9920465204327) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1574839 + ... + 4724515.

It is an arithmetic number, because the mean of its divisors is an integer number (3306822784669).

Almost surely, 2^{9920465204329} is an apocalyptic number.

9920465204329 is the 3149677-th square number.

9920465204329 is the 1574839-th centered octagonal number.

It is an amenable number.

9920465204329 is a deficient number, since it is larger than the sum of its proper divisors (3149678).

9920465204329 is an frugal number, since it uses more digits than its factorization.

9920465204329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299354 (or 3149677 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 55.

The spelling of 9920465204329 in words is "nine trillion, nine hundred twenty billion, four hundred sixty-five million, two hundred four thousand, three hundred twenty-nine".