320672727277 has 6 divisors (see below), whose sum is σ = 373027458318. Its totient is φ = 274862337624.

The previous prime is 320672727269. The next prime is 320672727281. The reversal of 320672727277 is 772727276023.

It can be written as a sum of positive squares in only one way, i.e., 315814776676 + 4857950601 = 561974^2 + 69699^2 .

It is not a de Polignac number, because 320672727277 - 2³ = 320672727269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320672737277) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3272170638 + ... + 3272170735.

It is an arithmetic number, because the mean of its divisors is an integer number (62171243053).

Almost surely, 2^320672727277 is an apocalyptic number.

It is an amenable number.

320672727277 is a deficient number, since it is larger than the sum of its proper divisors (52354731041).

320672727277 is an equidigital number, since it uses as much as digits as its factorization.

320672727277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6544341387 (or 6544341380 counting only the distinct ones).

The product of its (nonzero) digits is 4840416, while the sum is 52.

The spelling of 320672727277 in words is "three hundred twenty billion, six hundred seventy-two million, seven hundred twenty-seven thousand, two hundred seventy-seven".