320600277493 has 2 divisors, whose sum is σ = 320600277494. Its totient is φ = 320600277492.

The previous prime is 320600277457. The next prime is 320600277511. The reversal of 320600277493 is 394772006023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230253143409 + 90347134084 = 479847^2 + 300578^2 .

It is a cyclic number.

It is not a de Polignac number, because 320600277493 - 2⁹ = 320600276981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320600277443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160300138746 + 160300138747.

It is an arithmetic number, because the mean of its divisors is an integer number (160300138747).

Almost surely, 2^320600277493 is an apocalyptic number.

It is an amenable number.

320600277493 is a deficient number, since it is larger than the sum of its proper divisors (1).

320600277493 is an equidigital number, since it uses as much as digits as its factorization.

320600277493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 320600277493 in words is "three hundred twenty billion, six hundred million, two hundred seventy-seven thousand, four hundred ninety-three".