1316821459079 has 8 divisors (see below), whose sum is σ = 1530446248320. Its totient is φ = 1109573529336.

The previous prime is 1316821459067. The next prime is 1316821459087. The reversal of 1316821459079 is 9709541286131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1316821459079 - 2¹⁶ = 1316821393543 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 (1316821459579) 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, 1594214429 + ... + 1594215254.

It is an arithmetic number, because the mean of its divisors is an integer number (191305781040).

It is a 1-persistent number, because it is pandigital, but 2⋅1316821459079 = 2633642918158 is not.

Almost surely, 2^{1316821459079} is an apocalyptic number.

1316821459079 is a deficient number, since it is larger than the sum of its proper divisors (213624789241).

1316821459079 is an equidigital number, since it uses as much as digits as its factorization.

1316821459079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188429749.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 1316821459079 in words is "one trillion, three hundred sixteen billion, eight hundred twenty-one million, four hundred fifty-nine thousand, seventy-nine".