811304764842 has 32 divisors (see below), whose sum is σ = 1906282526400. Its totient is φ = 226938395520.

The previous prime is 811304764841. The next prime is 811304764871. The reversal of 811304764842 is 248467403118.

It is a junction number, because it is equal to n+sod(n) for n = 811304764791 and 811304764800.

It is not an unprimeable number, because it can be changed into a prime (811304764841) 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 in 15 ways as a sum of consecutive naturals, for example, 472787467 + ... + 472789182.

It is an arithmetic number, because the mean of its divisors is an integer number (59571328950).

Almost surely, 2^811304764842 is an apocalyptic number.

811304764842 is an abundant number, since it is smaller than the sum of its proper divisors (1094977761558).

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

811304764842 is a wasteful number, since it uses less digits than its factorization.

811304764842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945576678.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 811304764842 in words is "eight hundred eleven billion, three hundred four million, seven hundred sixty-four thousand, eight hundred forty-two".