320778111327573 has 32 divisors (see below), whose sum is σ = 448615765794816. Its totient is φ = 203642490616128.

The previous prime is 320778111327551. The next prime is 320778111327599. The reversal of 320778111327573 is 375723111877023.

It is not a de Polignac number, because 320778111327573 - 2¹² = 320778111323477 is a prime.

It is a super-3 number, since 3×320778111327573³ (a number of 44 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320778111327173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432760690 + ... + 433501292.

It is an arithmetic number, because the mean of its divisors is an integer number (14019242681088).

Almost surely, 2^{320778111327573} is an apocalyptic number.

It is an amenable number.

320778111327573 is a deficient number, since it is larger than the sum of its proper divisors (127837654467243).

320778111327573 is a wasteful number, since it uses less digits than its factorization.

320778111327573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823713.

The product of its (nonzero) digits is 10372320, while the sum is 57.

The spelling of 320778111327573 in words is "three hundred twenty trillion, seven hundred seventy-eight billion, one hundred eleven million, three hundred twenty-seven thousand, five hundred seventy-three".