9954946336609 has 2 divisors, whose sum is σ = 9954946336610. Its totient is φ = 9954946336608.

The previous prime is 9954946336597. The next prime is 9954946336681. The reversal of 9954946336609 is 9066336494599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9028823040000 + 926123296609 = 3004800^2 + 962353^2 .

It is a cyclic number.

It is not a de Polignac number, because 9954946336609 - 2⁴¹ = 7755923081057 is a prime.

It is not a weakly prime, because it can be changed into another prime (9954946336409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4977473168304 + 4977473168305.

It is an arithmetic number, because the mean of its divisors is an integer number (4977473168305).

Almost surely, 2^{9954946336609} is an apocalyptic number.

It is an amenable number.

9954946336609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9954946336609 is an equidigital number, since it uses as much as digits as its factorization.

9954946336609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1020366720, while the sum is 73.

The spelling of 9954946336609 in words is "nine trillion, nine hundred fifty-four billion, nine hundred forty-six million, three hundred thirty-six thousand, six hundred nine".