1992411796217 has 2 divisors, whose sum is σ = 1992411796218. Its totient is φ = 1992411796216.

The previous prime is 1992411796139. The next prime is 1992411796223. The reversal of 1992411796217 is 7126971142991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1635505919161 + 356905877056 = 1278869^2 + 597416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992411796217 - 2⁸ = 1992411795961 is a prime.

It is a super-2 number, since 2×1992411796217² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1992411796517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996205898108 + 996205898109.

It is an arithmetic number, because the mean of its divisors is an integer number (996205898109).

Almost surely, 2^{1992411796217} is an apocalyptic number.

It is an amenable number.

1992411796217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992411796217 is an equidigital number, since it uses as much as digits as its factorization.

1992411796217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 59.

The spelling of 1992411796217 in words is "one trillion, nine hundred ninety-two billion, four hundred eleven million, seven hundred ninety-six thousand, two hundred seventeen".