804768842172 has 24 divisors (see below), whose sum is σ = 1881649818496. Its totient is φ = 267705444528.

The previous prime is 804768842107. The next prime is 804768842209. The reversal of 804768842172 is 271248867408.

It is a happy number.

It is a super-2 number, since 2×804768842172² (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 7 ways as a sum of consecutive naturals, for example, 68848438 + ... + 68860125.

Almost surely, 2^804768842172 is an apocalyptic number.

It is an amenable number.

804768842172 is an abundant number, since it is smaller than the sum of its proper divisors (1076880976324).

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

804768842172 is a wasteful number, since it uses less digits than its factorization.

804768842172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137709057 (or 137709055 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 57.

The spelling of 804768842172 in words is "eight hundred four billion, seven hundred sixty-eight million, eight hundred forty-two thousand, one hundred seventy-two".