110987985791 has 4 divisors (see below), whose sum is σ = 112508369232. Its totient is φ = 109467602352.

The previous prime is 110987985781. The next prime is 110987985847. The reversal of 110987985791 is 197589789011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 197589789011 = 8263 ⋅23912597.

It is a cyclic number.

It is not a de Polignac number, because 110987985791 - 2¹⁸ = 110987723647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110987985751) by changing a digit.

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, 760191611 + ... + 760191756.

It is an arithmetic number, because the mean of its divisors is an integer number (28127092308).

Almost surely, 2^110987985791 is an apocalyptic number.

110987985791 is a deficient number, since it is larger than the sum of its proper divisors (1520383441).

110987985791 is an equidigital number, since it uses as much as digits as its factorization.

110987985791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520383440.

The product of its (nonzero) digits is 11430720, while the sum is 65.

The spelling of 110987985791 in words is "one hundred ten billion, nine hundred eighty-seven million, nine hundred eighty-five thousand, seven hundred ninety-one".