1158644289768 has 96 divisors (see below), whose sum is σ = 3396058905600. Its totient is φ = 328434559488.

The previous prime is 1158644289749. The next prime is 1158644289791. The reversal of 1158644289768 is 8679824468511.

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 23 ways as a sum of consecutive naturals, for example, 3729553 + ... + 4028256.

It is an arithmetic number, because the mean of its divisors is an integer number (35375613600).

Almost surely, 2^{1158644289768} is an apocalyptic number.

It is an amenable number.

1158644289768 is an abundant number, since it is smaller than the sum of its proper divisors (2237414615832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158644289768 is a wasteful number, since it uses less digits than its factorization.

1158644289768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757959 (or 7757948 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 69.

The spelling of 1158644289768 in words is "one trillion, one hundred fifty-eight billion, six hundred forty-four million, two hundred eighty-nine thousand, seven hundred sixty-eight".