10000879217449 has 2 divisors, whose sum is σ = 10000879217450. Its totient is φ = 10000879217448.

The previous prime is 10000879217437. The next prime is 10000879217503. The reversal of 10000879217449 is 94471297800001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5267796148224 + 4733083069225 = 2295168^2 + 2175565^2 .

It is an emirp because it is prime and its reverse (94471297800001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10000879217449 - 2²⁹ = 10000342346537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000879217396 and 10000879217405.

It is not a weakly prime, because it can be changed into another prime (10000879217149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000439608724 + 5000439608725.

It is an arithmetic number, because the mean of its divisors is an integer number (5000439608725).

Almost surely, 2^{10000879217449} is an apocalyptic number.

It is an amenable number.

10000879217449 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000879217449 is an equidigital number, since it uses as much as digits as its factorization.

10000879217449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 10000879217449 in words is "ten trillion, eight hundred seventy-nine million, two hundred seventeen thousand, four hundred forty-nine".