320262726513 has 8 divisors (see below), whose sum is σ = 427021867008. Its totient is φ = 213506035184.

The previous prime is 320262726499. The next prime is 320262726529. The reversal of 320262726513 is 315627262023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320262726513 - 2⁵ = 320262726481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320262726013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281670 + ... + 848447.

It is an arithmetic number, because the mean of its divisors is an integer number (53377733376).

Almost surely, 2^320262726513 is an apocalyptic number.

It is an amenable number.

320262726513 is a deficient number, since it is larger than the sum of its proper divisors (106759140495).

320262726513 is a wasteful number, since it uses less digits than its factorization.

320262726513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224583.

The product of its (nonzero) digits is 181440, while the sum is 39.

Adding to 320262726513 its reverse (315627262023), we get a palindrome (635889988536).

The spelling of 320262726513 in words is "three hundred twenty billion, two hundred sixty-two million, seven hundred twenty-six thousand, five hundred thirteen".