320485615287 has 4 divisors (see below), whose sum is σ = 427314153720. Its totient is φ = 213657076856.

The previous prime is 320485615237. The next prime is 320485615309. The reversal of 320485615287 is 782516584023.

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 320485615287 - 2¹⁴ = 320485598903 is a prime.

It is a super-3 number, since 3×320485615287³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320485615237) 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, 53414269212 + ... + 53414269217.

It is an arithmetic number, because the mean of its divisors is an integer number (106828538430).

Almost surely, 2^320485615287 is an apocalyptic number.

320485615287 is a deficient number, since it is larger than the sum of its proper divisors (106828538433).

320485615287 is a wasteful number, since it uses less digits than its factorization.

320485615287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106828538432.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 320485615287 in words is "three hundred twenty billion, four hundred eighty-five million, six hundred fifteen thousand, two hundred eighty-seven".