320487269759 has 4 divisors (see below), whose sum is σ = 320488619880. Its totient is φ = 320485919640.

The previous prime is 320487269693. The next prime is 320487269789. The reversal of 320487269759 is 957962784023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320487269759 - 2¹⁶ = 320487204223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320487269789) 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 in 3 ways as a sum of consecutive naturals, for example, 214052 + ... + 828729.

It is an arithmetic number, because the mean of its divisors is an integer number (80122154970).

Almost surely, 2^320487269759 is an apocalyptic number.

320487269759 is a deficient number, since it is larger than the sum of its proper divisors (1350121).

320487269759 is a wasteful number, since it uses less digits than its factorization.

320487269759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350120.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 320487269759 in words is "three hundred twenty billion, four hundred eighty-seven million, two hundred sixty-nine thousand, seven hundred fifty-nine".