320494388359679 has 8 divisors (see below), whose sum is σ = 338297036269680. Its totient is φ = 303626262650040.

The previous prime is 320494388359667. The next prime is 320494388359771. The reversal of 320494388359679 is 976953883494023.

It is a de Polignac number, because none of the positive numbers 2^k-320494388359679 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 (320494388359879) 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, 23363048132 + ... + 23363061849.

It is an arithmetic number, because the mean of its divisors is an integer number (42287129533710).

Almost surely, 2^{320494388359679} is an apocalyptic number.

320494388359679 is a deficient number, since it is larger than the sum of its proper divisors (17802647910001).

320494388359679 is an frugal number, since it uses more digits than its factorization.

320494388359679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46726110038 (or 46726110000 counting only the distinct ones).

The product of its (nonzero) digits is 8465264640, while the sum is 80.

The spelling of 320494388359679 in words is "three hundred twenty trillion, four hundred ninety-four billion, three hundred eighty-eight million, three hundred fifty-nine thousand, six hundred seventy-nine".