811744342859 has 8 divisors (see below), whose sum is σ = 859506166080. Its totient is φ = 763983870336.

The previous prime is 811744342847. The next prime is 811744342867. The reversal of 811744342859 is 958243447118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 811744342859 - 2⁸ = 811744342603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (811744342159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066517 + ... + 1661609.

It is an arithmetic number, because the mean of its divisors is an integer number (107438270760).

Almost surely, 2^811744342859 is an apocalyptic number.

811744342859 is a deficient number, since it is larger than the sum of its proper divisors (47761823221).

811744342859 is a wasteful number, since it uses less digits than its factorization.

811744342859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675349.

The product of its digits is 7741440, while the sum is 56.

The spelling of 811744342859 in words is "eight hundred eleven billion, seven hundred forty-four million, three hundred forty-two thousand, eight hundred fifty-nine".