804644888516 has 24 divisors (see below), whose sum is σ = 1609318119360. Its totient is φ = 344841736032.

The previous prime is 804644888477. The next prime is 804644888519. The reversal of 804644888516 is 615888446408.

It is a super-2 number, since 2×804644888516² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (804644888519) 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, 1604375 + ... + 2045313.

It is an arithmetic number, because the mean of its divisors is an integer number (67054921640).

Almost surely, 2^804644888516 is an apocalyptic number.

It is an amenable number.

804644888516 is an abundant number, since it is smaller than the sum of its proper divisors (804673230844).

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

804644888516 is a wasteful number, since it uses less digits than its factorization.

804644888516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506123 (or 506121 counting only the distinct ones).

The product of its (nonzero) digits is 47185920, while the sum is 62.

The spelling of 804644888516 in words is "eight hundred four billion, six hundred forty-four million, eight hundred eighty-eight thousand, five hundred sixteen".