320072892409 has 2 divisors, whose sum is σ = 320072892410. Its totient is φ = 320072892408.

The previous prime is 320072892367. The next prime is 320072892421. The reversal of 320072892409 is 904298270023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241698090384 + 78374802025 = 491628^2 + 279955^2 .

It is a cyclic number.

It is not a de Polignac number, because 320072892409 - 2²¹ = 320070795257 is a prime.

It is not a weakly prime, because it can be changed into another prime (320072892499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160036446204 + 160036446205.

It is an arithmetic number, because the mean of its divisors is an integer number (160036446205).

Almost surely, 2^320072892409 is an apocalyptic number.

It is an amenable number.

320072892409 is a deficient number, since it is larger than the sum of its proper divisors (1).

320072892409 is an equidigital number, since it uses as much as digits as its factorization.

320072892409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 320072892409 in words is "three hundred twenty billion, seventy-two million, eight hundred ninety-two thousand, four hundred nine".