1091317964368 has 20 divisors (see below), whose sum is σ = 2118582655380. Its totient is φ = 544586956544.

The previous prime is 1091317964327. The next prime is 1091317964431. The reversal of 1091317964368 is 8634697131901.

It can be written as a sum of positive squares in 2 ways, for example, as 413613624384 + 677704339984 = 643128^2 + 823228^2 .

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 66993205 + ... + 67009492.

It is an arithmetic number, because the mean of its divisors is an integer number (105929132769).

Almost surely, 2^{1091317964368} is an apocalyptic number.

It is an amenable number.

1091317964368 is a deficient number, since it is larger than the sum of its proper divisors (1027264691012).

1091317964368 is a wasteful number, since it uses less digits than its factorization.

1091317964368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134003214 (or 134003208 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 1091317964368 in words is "one trillion, ninety-one billion, three hundred seventeen million, nine hundred sixty-four thousand, three hundred sixty-eight".