818835611072 has 56 divisors (see below), whose sum is σ = 1628980045056. Its totient is φ = 408384937728.

The previous prime is 818835611053. The next prime is 818835611089. The reversal of 818835611072 is 270116538818.

It is a self number, because there is not a number n which added to its sum of digits gives 818835611072.

It is a congruent number.

It is an unprimeable number.

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, 62485673 + ... + 62498775.

It is an arithmetic number, because the mean of its divisors is an integer number (29088929376).

Almost surely, 2^818835611072 is an apocalyptic number.

It is an amenable number.

818835611072 is a deficient number, since it is larger than the sum of its proper divisors (810144433984).

818835611072 is a wasteful number, since it uses less digits than its factorization.

818835611072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15505 (or 15495 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 50.

The spelling of 818835611072 in words is "eight hundred eighteen billion, eight hundred thirty-five million, six hundred eleven thousand, seventy-two".