1980394104683 has 2 divisors, whose sum is σ = 1980394104684. Its totient is φ = 1980394104682.

The previous prime is 1980394104653. The next prime is 1980394104697. The reversal of 1980394104683 is 3864014930891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1980394104683 - 2²² = 1980389910379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1980394104653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990197052341 + 990197052342.

It is an arithmetic number, because the mean of its divisors is an integer number (990197052342).

Almost surely, 2^{1980394104683} is an apocalyptic number.

1980394104683 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980394104683 is an equidigital number, since it uses as much as digits as its factorization.

1980394104683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 1980394104683 in words is "one trillion, nine hundred eighty billion, three hundred ninety-four million, one hundred four thousand, six hundred eighty-three".