1800416782079 has 2 divisors, whose sum is σ = 1800416782080. Its totient is φ = 1800416782078.

The previous prime is 1800416782069. The next prime is 1800416782117. The reversal of 1800416782079 is 9702876140081.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9702876140081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1800416782079 - 2⁴ = 1800416782063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1800416782079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1800416782069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900208391039 + 900208391040.

It is an arithmetic number, because the mean of its divisors is an integer number (900208391040).

Almost surely, 2^{1800416782079} is an apocalyptic number.

1800416782079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1800416782079 is an equidigital number, since it uses as much as digits as its factorization.

1800416782079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 1800416782079 in words is "one trillion, eight hundred billion, four hundred sixteen million, seven hundred eighty-two thousand, seventy-nine".