1129395668642 has 16 divisors (see below), whose sum is σ = 1709525090592. Its totient is φ = 559566596160.

The previous prime is 1129395668581. The next prime is 1129395668647. The reversal of 1129395668642 is 2468665939211.

It is not an unprimeable number, because it can be changed into a prime (1129395668647) 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 in 7 ways as a sum of consecutive naturals, for example, 2976743 + ... + 3334634.

It is an arithmetic number, because the mean of its divisors is an integer number (106845318162).

Almost surely, 2^{1129395668642} is an apocalyptic number.

1129395668642 is a deficient number, since it is larger than the sum of its proper divisors (580129421950).

1129395668642 is a wasteful number, since it uses less digits than its factorization.

1129395668642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312193.

The product of its digits is 33592320, while the sum is 62.

The spelling of 1129395668642 in words is "one trillion, one hundred twenty-nine billion, three hundred ninety-five million, six hundred sixty-eight thousand, six hundred forty-two".