199068453876893 has 2 divisors, whose sum is σ = 199068453876894. Its totient is φ = 199068453876892.

The previous prime is 199068453876889. The next prime is 199068453876947. The reversal of 199068453876893 is 398678354860991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100815515920249 + 98252937956644 = 10040693^2 + 9912262^2 .

It is an emirp because it is prime and its reverse (398678354860991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199068453876893 - 2² = 199068453876889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199068453876863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99534226938446 + 99534226938447.

It is an arithmetic number, because the mean of its divisors is an integer number (99534226938447).

Almost surely, 2^{199068453876893} is an apocalyptic number.

It is an amenable number.

199068453876893 is a deficient number, since it is larger than the sum of its proper divisors (1).

199068453876893 is an equidigital number, since it uses as much as digits as its factorization.

199068453876893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16930529280, while the sum is 86.

The spelling of 199068453876893 in words is "one hundred ninety-nine trillion, sixty-eight billion, four hundred fifty-three million, eight hundred seventy-six thousand, eight hundred ninety-three".