320185677473 has 2 divisors, whose sum is σ = 320185677474. Its totient is φ = 320185677472.

The previous prime is 320185677457. The next prime is 320185677491. The reversal of 320185677473 is 374776581023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313368202849 + 6817474624 = 559793^2 + 82568^2 .

It is a cyclic number.

It is not a de Polignac number, because 320185677473 - 2⁴ = 320185677457 is a prime.

It is not a weakly prime, because it can be changed into another prime (320185677433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160092838736 + 160092838737.

It is an arithmetic number, because the mean of its divisors is an integer number (160092838737).

Almost surely, 2^320185677473 is an apocalyptic number.

It is an amenable number.

320185677473 is a deficient number, since it is larger than the sum of its proper divisors (1).

320185677473 is an equidigital number, since it uses as much as digits as its factorization.

320185677473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 320185677473 in words is "three hundred twenty billion, one hundred eighty-five million, six hundred seventy-seven thousand, four hundred seventy-three".