804180863412 has 18 divisors (see below), whose sum is σ = 2032790515938. Its totient is φ = 268060287792.

The previous prime is 804180863411. The next prime is 804180863459. The reversal of 804180863412 is 214368081408.

804180863412 is a `hidden beast` number, since 8 + 0 + 4 + 1 + 8 + 0 + 8 + 634 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 642620276496 + 161560586916 = 801636^2 + 401946^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×804180863412² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804180863411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11169178623 + ... + 11169178694.

It is an arithmetic number, because the mean of its divisors is an integer number (112932806441).

Almost surely, 2^804180863412 is an apocalyptic number.

It is an amenable number.

804180863412 is an abundant number, since it is smaller than the sum of its proper divisors (1228609652526).

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

804180863412 is a wasteful number, since it uses less digits than its factorization.

804180863412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338357327 (or 22338357322 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 804180863412 in words is "eight hundred four billion, one hundred eighty million, eight hundred sixty-three thousand, four hundred twelve".