811465930180 has 24 divisors (see below), whose sum is σ = 1720004424768. Its totient is φ = 321552853728.

The previous prime is 811465930159. The next prime is 811465930181. The reversal of 811465930180 is 81039564118.

It is a self number, because there is not a number n which added to its sum of digits gives 811465930180.

It is not an unprimeable number, because it can be changed into a prime (811465930181) 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 7 ways as a sum of consecutive naturals, for example, 189592704 + ... + 189596983.

It is an arithmetic number, because the mean of its divisors is an integer number (71666851032).

Almost surely, 2^811465930180 is an apocalyptic number.

It is an amenable number.

811465930180 is an abundant number, since it is smaller than the sum of its proper divisors (908538494588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

811465930180 is a wasteful number, since it uses less digits than its factorization.

811465930180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379189803 (or 379189801 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 811465930180 in words is "eight hundred eleven billion, four hundred sixty-five million, nine hundred thirty thousand, one hundred eighty".