9979299954009 has 27 divisors (see below), whose sum is σ = 14621411459317. Its totient is φ = 6558722028600.

The previous prime is 9979299953977. The next prime is 9979299954059. The reversal of 9979299954009 is 9004599929799.

The square root of 9979299954009 is 3159003.

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

It is not a de Polignac number, because 9979299954009 - 2⁵ = 9979299953977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9979299954059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 672860224 + ... + 672875054.

Almost surely, 2^{9979299954009} is an apocalyptic number.

9979299954009 is the 3159003-rd square number.

9979299954009 is the 1579502-nd centered octagonal number.

It is an amenable number.

9979299954009 is a deficient number, since it is larger than the sum of its proper divisors (4642111505308).

9979299954009 is an frugal number, since it uses more digits than its factorization.

9979299954009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29810 (or 14905 counting only the distinct ones).

The product of its (nonzero) digits is 1339231320, while the sum is 81.

Multiplying 9979299954009 by its sum of digits (81), we get a square (808323296274729 = 28431027²).

The spelling of 9979299954009 in words is "nine trillion, nine hundred seventy-nine billion, two hundred ninety-nine million, nine hundred fifty-four thousand, nine".