320388539407 has 6 divisors (see below), whose sum is σ = 340343535248. Its totient is φ = 301542154464.

The previous prime is 320388539347. The next prime is 320388539413. The reversal of 320388539407 is 704935883023.

It is not a de Polignac number, because 320388539407 - 2²³ = 320380150799 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 (320388536407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554305143 + ... + 554305720.

Almost surely, 2^320388539407 is an apocalyptic number.

320388539407 is a deficient number, since it is larger than the sum of its proper divisors (19954995841).

320388539407 is a wasteful number, since it uses less digits than its factorization.

320388539407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108610897 (or 1108610880 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 320388539407 in words is "three hundred twenty billion, three hundred eighty-eight million, five hundred thirty-nine thousand, four hundred seven".