1299453607693 has 2 divisors, whose sum is σ = 1299453607694. Its totient is φ = 1299453607692.

The previous prime is 1299453607657. The next prime is 1299453607733. The reversal of 1299453607693 is 3967063549921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1258708974084 + 40744633609 = 1121922^2 + 201853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299453607693 - 2²¹ = 1299451510541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299453607633) 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, 649726803846 + 649726803847.

It is an arithmetic number, because the mean of its divisors is an integer number (649726803847).

Almost surely, 2^{1299453607693} is an apocalyptic number.

It is an amenable number.

1299453607693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299453607693 is an equidigital number, since it uses as much as digits as its factorization.

1299453607693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66134880, while the sum is 64.

The spelling of 1299453607693 in words is "one trillion, two hundred ninety-nine billion, four hundred fifty-three million, six hundred seven thousand, six hundred ninety-three".