404886086872 has 32 divisors (see below), whose sum is σ = 783689339520. Its totient is φ = 195902910720.

The previous prime is 404886086867. The next prime is 404886086873. The reversal of 404886086872 is 278680688404.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 404886086872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404886086873) 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 7 ways as a sum of consecutive naturals, for example, 9461428 + ... + 9504124.

It is an arithmetic number, because the mean of its divisors is an integer number (24490291860).

Almost surely, 2^404886086872 is an apocalyptic number.

It is an amenable number.

404886086872 is a deficient number, since it is larger than the sum of its proper divisors (378803252648).

404886086872 is a wasteful number, since it uses less digits than its factorization.

404886086872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80971 (or 80967 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 61.

The spelling of 404886086872 in words is "four hundred four billion, eight hundred eighty-six million, eighty-six thousand, eight hundred seventy-two".