320476856804 has 96 divisors (see below), whose sum is σ = 651887964000. Its totient is φ = 136529141760.

The previous prime is 320476856803. The next prime is 320476856839. The reversal of 320476856804 is 408658674023.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 63121537600 + 257355319204 = 251240^2 + 507302^2 .

It is not an unprimeable number, because it can be changed into a prime (320476856803) 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, 18810962 + ... + 18827990.

It is an arithmetic number, because the mean of its divisors is an integer number (6790499625).

Almost surely, 2^320476856804 is an apocalyptic number.

320476856804 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

320476856804 is an abundant number, since it is smaller than the sum of its proper divisors (331411107196).

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

320476856804 is a wasteful number, since it uses less digits than its factorization.

320476856804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17473 (or 17471 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 320476856804 in words is "three hundred twenty billion, four hundred seventy-six million, eight hundred fifty-six thousand, eight hundred four".