1992820142917 has 2 divisors, whose sum is σ = 1992820142918. Its totient is φ = 1992820142916.

The previous prime is 1992820142903. The next prime is 1992820142983. The reversal of 1992820142917 is 7192410282991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1822969830276 + 169850312641 = 1350174^2 + 412129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992820142917 - 2¹¹ = 1992820140869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1992820142617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996410071458 + 996410071459.

It is an arithmetic number, because the mean of its divisors is an integer number (996410071459).

Almost surely, 2^{1992820142917} is an apocalyptic number.

It is an amenable number.

1992820142917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992820142917 is an equidigital number, since it uses as much as digits as its factorization.

1992820142917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 55.

The spelling of 1992820142917 in words is "one trillion, nine hundred ninety-two billion, eight hundred twenty million, one hundred forty-two thousand, nine hundred seventeen".