811321325446 has 8 divisors (see below), whose sum is σ = 1217117672424. Its totient is φ = 405615434640.

The previous prime is 811321325413. The next prime is 811321325449. The reversal of 811321325446 is 644523123118.

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

It is a junction number, because it is equal to n+sod(n) for n = 811321325399 and 811321325408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811321325449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22591615 + ... + 22627498.

It is an arithmetic number, because the mean of its divisors is an integer number (152139709053).

Almost surely, 2^811321325446 is an apocalyptic number.

811321325446 is a deficient number, since it is larger than the sum of its proper divisors (405796346978).

811321325446 is a wasteful number, since it uses less digits than its factorization.

811321325446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45228086.

The product of its digits is 138240, while the sum is 40.

The spelling of 811321325446 in words is "eight hundred eleven billion, three hundred twenty-one million, three hundred twenty-five thousand, four hundred forty-six".