10991068115783 has 12 divisors (see below), whose sum is σ = 12863967049080. Its totient is φ = 9363118493232.

The previous prime is 10991068115767. The next prime is 10991068115789. The reversal of 10991068115783 is 38751186019901.

It is not a de Polignac number, because 10991068115783 - 2⁴ = 10991068115767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10991068115789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688051868 + ... + 688067841.

It is an arithmetic number, because the mean of its divisors is an integer number (1071997254090).

Almost surely, 2^{10991068115783} is an apocalyptic number.

10991068115783 is a deficient number, since it is larger than the sum of its proper divisors (1872898933297).

10991068115783 is a wasteful number, since it uses less digits than its factorization.

10991068115783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376119886 (or 1376119879 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 59.

The spelling of 10991068115783 in words is "ten trillion, nine hundred ninety-one billion, sixty-eight million, one hundred fifteen thousand, seven hundred eighty-three".