11081191893 has 16 divisors (see below), whose sum is σ = 15623526912. Its totient is φ = 6974784000.

The previous prime is 11081191817. The next prime is 11081191907. The reversal of 11081191893 is 39819118011.

It is not a de Polignac number, because 11081191893 - 2⁸ = 11081191637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11081191813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449268 + ... + 1456893.

It is an arithmetic number, because the mean of its divisors is an integer number (976470432).

Almost surely, 2^11081191893 is an apocalyptic number.

It is an amenable number.

11081191893 is a deficient number, since it is larger than the sum of its proper divisors (4542335019).

11081191893 is a wasteful number, since it uses less digits than its factorization.

11081191893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906236.

The product of its (nonzero) digits is 15552, while the sum is 42.

The spelling of 11081191893 in words is "eleven billion, eighty-one million, one hundred ninety-one thousand, eight hundred ninety-three".