320286605772 has 24 divisors (see below), whose sum is σ = 854097615616. Its totient is φ = 91510458768.

The previous prime is 320286605761. The next prime is 320286605819. The reversal of 320286605772 is 277506682023.

It is a happy 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, 1906467808 + ... + 1906467975.

Almost surely, 2^320286605772 is an apocalyptic number.

It is an amenable number.

320286605772 is an abundant number, since it is smaller than the sum of its proper divisors (533811009844).

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

320286605772 is a wasteful number, since it uses less digits than its factorization.

320286605772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812935797 (or 3812935795 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 320286605772 in words is "three hundred twenty billion, two hundred eighty-six million, six hundred five thousand, seven hundred seventy-two".