320390587347 has 16 divisors (see below), whose sum is σ = 441156357120. Its totient is φ = 206615167200.

The previous prime is 320390587339. The next prime is 320390587357. The reversal of 320390587347 is 743785093023.

It is not a de Polignac number, because 320390587347 - 2³ = 320390587339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320390587347.

It is not an unprimeable number, because it can be changed into a prime (320390587357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518097 + ... + 953522.

It is an arithmetic number, because the mean of its divisors is an integer number (27572272320).

Almost surely, 2^320390587347 is an apocalyptic number.

320390587347 is a deficient number, since it is larger than the sum of its proper divisors (120765769773).

320390587347 is a wasteful number, since it uses less digits than its factorization.

320390587347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473994.

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 320390587347 in words is "three hundred twenty billion, three hundred ninety million, five hundred eighty-seven thousand, three hundred forty-seven".