320609428599 has 8 divisors (see below), whose sum is σ = 430310227072. Its totient is φ = 212324124600.

The previous prime is 320609428511. The next prime is 320609428603. The reversal of 320609428599 is 995824906023.

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

It is not a de Polignac number, because 320609428599 - 2¹⁷ = 320609297527 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 (320609428099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353873089 + ... + 353873994.

It is an arithmetic number, because the mean of its divisors is an integer number (53788778384).

Almost surely, 2^320609428599 is an apocalyptic number.

320609428599 is a deficient number, since it is larger than the sum of its proper divisors (109700798473).

320609428599 is a wasteful number, since it uses less digits than its factorization.

320609428599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707747237.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 320609428599 in words is "three hundred twenty billion, six hundred nine million, four hundred twenty-eight thousand, five hundred ninety-nine".