1299244478068 has 12 divisors (see below), whose sum is σ = 2316577418820. Its totient is φ = 637365215552.

The previous prime is 1299244478053. The next prime is 1299244478089. The reversal of 1299244478068 is 8608744429921.

It can be written as a sum of positive squares in 2 ways, for example, as 585374949604 + 713869528464 = 765098^2 + 844908^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064255633 + ... + 3064256056.

It is an arithmetic number, because the mean of its divisors is an integer number (193048118235).

Almost surely, 2^{1299244478068} is an apocalyptic number.

It is an amenable number.

1299244478068 is a deficient number, since it is larger than the sum of its proper divisors (1017332940752).

1299244478068 is a wasteful number, since it uses less digits than its factorization.

1299244478068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6128511746 (or 6128511744 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 1299244478068 in words is "one trillion, two hundred ninety-nine billion, two hundred forty-four million, four hundred seventy-eight thousand, sixty-eight".