1361801280079 has 2 divisors, whose sum is σ = 1361801280080. Its totient is φ = 1361801280078.

The previous prime is 1361801279989. The next prime is 1361801280139. The reversal of 1361801280079 is 9700821081631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9700821081631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1361801280079 - 2²⁷ = 1361667062351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361801280979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680900640039 + 680900640040.

It is an arithmetic number, because the mean of its divisors is an integer number (680900640040).

Almost surely, 2^{1361801280079} is an apocalyptic number.

1361801280079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361801280079 is an equidigital number, since it uses as much as digits as its factorization.

1361801280079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 1361801280079 in words is "one trillion, three hundred sixty-one billion, eight hundred one million, two hundred eighty thousand, seventy-nine".