320464784618 has 8 divisors (see below), whose sum is σ = 524396920320. Its totient is φ = 145665811180.

The previous prime is 320464784593. The next prime is 320464784641. The reversal of 320464784618 is 816487464023.

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

It is a super-2 number, since 2×320464784618² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320464784618.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7283290538 + ... + 7283290581.

It is an arithmetic number, because the mean of its divisors is an integer number (65549615040).

Almost surely, 2^320464784618 is an apocalyptic number.

320464784618 is a deficient number, since it is larger than the sum of its proper divisors (203932135702).

320464784618 is a wasteful number, since it uses less digits than its factorization.

320464784618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14566581132.

The product of its (nonzero) digits is 6193152, while the sum is 53.

The spelling of 320464784618 in words is "three hundred twenty billion, four hundred sixty-four million, seven hundred eighty-four thousand, six hundred eighteen".