671079904803 has 32 divisors (see below), whose sum is σ = 1239512670720. Its totient is φ = 348612936480.

The previous prime is 671079904799. The next prime is 671079904811. The reversal of 671079904803 is 308409970176.

It is a happy number.

671079904803 is a `hidden beast` number, since 6 + 7 + 1 + 0 + 79 + 90 + 480 + 3 = 666.

It is not a de Polignac number, because 671079904803 - 2² = 671079904799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671079904803.

It is not an unprimeable number, because it can be changed into a prime (671079904843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161392800 + ... + 161396957.

It is an arithmetic number, because the mean of its divisors is an integer number (38734770960).

Almost surely, 2^671079904803 is an apocalyptic number.

671079904803 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

671079904803 is a deficient number, since it is larger than the sum of its proper divisors (568432765917).

671079904803 is a wasteful number, since it uses less digits than its factorization.

671079904803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322789784 (or 322789778 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 671079904803 in words is "six hundred seventy-one billion, seventy-nine million, nine hundred four thousand, eight hundred three".