1811073771814 has 4 divisors (see below), whose sum is σ = 2716610657724. Its totient is φ = 905536885906.

The previous prime is 1811073771797. The next prime is 1811073771817. The reversal of 1811073771814 is 4181773701181.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1811073771817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452768442952 + ... + 452768442955.

It is an arithmetic number, because the mean of its divisors is an integer number (679152664431).

Almost surely, 2^{1811073771814} is an apocalyptic number.

1811073771814 is a deficient number, since it is larger than the sum of its proper divisors (905536885910).

1811073771814 is an equidigital number, since it uses as much as digits as its factorization.

1811073771814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905536885909.

The product of its (nonzero) digits is 263424, while the sum is 49.

The spelling of 1811073771814 in words is "one trillion, eight hundred eleven billion, seventy-three million, seven hundred seventy-one thousand, eight hundred fourteen".