804084778406 has 64 divisors (see below), whose sum is σ = 1540303481472. Its totient is φ = 306311196672.

The previous prime is 804084778403. The next prime is 804084778417. The reversal of 804084778406 is 604877480408.

It is a super-2 number, since 2×804084778406² (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 (804084778403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37700 + ... + 1268696.

It is an arithmetic number, because the mean of its divisors is an integer number (24067241898).

Almost surely, 2^804084778406 is an apocalyptic number.

804084778406 is a deficient number, since it is larger than the sum of its proper divisors (736218703066).

804084778406 is a wasteful number, since it uses less digits than its factorization.

804084778406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231153.

The product of its (nonzero) digits is 9633792, while the sum is 56.

The spelling of 804084778406 in words is "eight hundred four billion, eighty-four million, seven hundred seventy-eight thousand, four hundred six".