804911867802 has 48 divisors (see below), whose sum is σ = 1993840992000. Its totient is φ = 229891062816.

The previous prime is 804911867783. The next prime is 804911867803. The reversal of 804911867802 is 208768119408.

804911867802 is a `hidden beast` number, since 8 + 0 + 491 + 1 + 86 + 78 + 0 + 2 = 666.

It is a super-2 number, since 2×804911867802² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (804911867803) 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 23 ways as a sum of consecutive naturals, for example, 815538 + ... + 1508285.

It is an arithmetic number, because the mean of its divisors is an integer number (41538354000).

Almost surely, 2^804911867802 is an apocalyptic number.

804911867802 is an abundant number, since it is smaller than the sum of its proper divisors (1188929124198).

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

804911867802 is a wasteful number, since it uses less digits than its factorization.

804911867802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326587 (or 2326584 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 804911867802 in words is "eight hundred four billion, nine hundred eleven million, eight hundred sixty-seven thousand, eight hundred two".