320628914886 has 16 divisors (see below), whose sum is σ = 732866091264. Its totient is φ = 91608261384.

The previous prime is 320628914867. The next prime is 320628914897. The reversal of 320628914886 is 688419826023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3817010850 + ... + 3817010933.

It is an arithmetic number, because the mean of its divisors is an integer number (45804130704).

Almost surely, 2^320628914886 is an apocalyptic number.

320628914886 is an abundant number, since it is smaller than the sum of its proper divisors (412237176378).

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

320628914886 is a wasteful number, since it uses less digits than its factorization.

320628914886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634021795.

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 320628914886 in words is "three hundred twenty billion, six hundred twenty-eight million, nine hundred fourteen thousand, eight hundred eighty-six".