320447878476 has 48 divisors (see below), whose sum is σ = 843812605440. Its totient is φ = 93756953920.

The previous prime is 320447878463. The next prime is 320447878477. The reversal of 320447878476 is 674878744023.

It is not an unprimeable number, because it can be changed into a prime (320447878477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41851956 + ... + 41859611.

It is an arithmetic number, because the mean of its divisors is an integer number (17579429280).

Almost surely, 2^320447878476 is an apocalyptic number.

It is an amenable number.

320447878476 is an abundant number, since it is smaller than the sum of its proper divisors (523364726964).

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

320447878476 is a wasteful number, since it uses less digits than its factorization.

320447878476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83711614 (or 83711612 counting only the distinct ones).

The product of its (nonzero) digits is 50577408, while the sum is 60.

The spelling of 320447878476 in words is "three hundred twenty billion, four hundred forty-seven million, eight hundred seventy-eight thousand, four hundred seventy-six".