320726327013 has 12 divisors (see below), whose sum is σ = 474045114400. Its totient is φ = 208845049896.

The previous prime is 320726327011. The next prime is 320726327021. The reversal of 320726327013 is 310723627023.

320726327013 is a `hidden beast` number, since 3 + 2 + 0 + 7 + 2 + 632 + 7 + 0 + 13 = 666.

It is not a de Polignac number, because 320726327013 - 2¹ = 320726327011 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320726327011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414374713 + ... + 414375486.

Almost surely, 2^320726327013 is an apocalyptic number.

It is an amenable number.

320726327013 is a deficient number, since it is larger than the sum of its proper divisors (153318787387).

320726327013 is a wasteful number, since it uses less digits than its factorization.

320726327013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828750248 (or 828750245 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The spelling of 320726327013 in words is "three hundred twenty billion, seven hundred twenty-six million, three hundred twenty-seven thousand, thirteen".