99906464620769 has 2 divisors, whose sum is σ = 99906464620770. Its totient is φ = 99906464620768.

The previous prime is 99906464620757. The next prime is 99906464620903. The reversal of 99906464620769 is 96702646460999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72122760070144 + 27783704550625 = 8492512^2 + 5271025^2 .

It is a cyclic number.

It is not a de Polignac number, because 99906464620769 - 2²⁰ = 99906463572193 is a prime.

It is a super-2 number, since 2×99906464620769² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99906464620769.

It is not a weakly prime, because it can be changed into another prime (99906464620169) 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 as a sum of consecutive naturals, namely, 49953232310384 + 49953232310385.

It is an arithmetic number, because the mean of its divisors is an integer number (49953232310385).

Almost surely, 2^{99906464620769} is an apocalyptic number.

It is an amenable number.

99906464620769 is a deficient number, since it is larger than the sum of its proper divisors (1).

99906464620769 is an equidigital number, since it uses as much as digits as its factorization.

99906464620769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1904684544, while the sum is 77.

The spelling of 99906464620769 in words is "ninety-nine trillion, nine hundred six billion, four hundred sixty-four million, six hundred twenty thousand, seven hundred sixty-nine".