804675561172 has 72 divisors (see below), whose sum is σ = 1717413848640. Its totient is φ = 328303261440.

The previous prime is 804675561139. The next prime is 804675561181. The reversal of 804675561172 is 271165576408.

It is a super-2 number, since 2×804675561172² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 528204 + ... + 1374172.

It is an arithmetic number, because the mean of its divisors is an integer number (23852970120).

Almost surely, 2^804675561172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804675561172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858706924320).

804675561172 is an abundant number, since it is smaller than the sum of its proper divisors (912738287468).

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

804675561172 is a wasteful number, since it uses less digits than its factorization.

804675561172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846221 (or 846212 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 804675561172 in words is "eight hundred four billion, six hundred seventy-five million, five hundred sixty-one thousand, one hundred seventy-two".