320366272728 has 64 divisors (see below), whose sum is σ = 808805491200. Its totient is φ = 105741624960.

The previous prime is 320366272727. The next prime is 320366272729. The reversal of 320366272728 is 827272663023.

It is an interprime number because it is at equal distance from previous prime (320366272727) and next prime (320366272729).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320366272727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909058 + ... + 1211246.

It is an arithmetic number, because the mean of its divisors is an integer number (12637585800).

Almost surely, 2^320366272728 is an apocalyptic number.

It is an amenable number.

320366272728 is an abundant number, since it is smaller than the sum of its proper divisors (488439218472).

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

320366272728 is a wasteful number, since it uses less digits than its factorization.

320366272728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302632 (or 302628 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 320366272728 in words is "three hundred twenty billion, three hundred sixty-six million, two hundred seventy-two thousand, seven hundred twenty-eight".