193567842493 has 2 divisors, whose sum is σ = 193567842494. Its totient is φ = 193567842492.

The previous prime is 193567842467. The next prime is 193567842641. The reversal of 193567842493 is 394248765391.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158935376889 + 34632465604 = 398667^2 + 186098^2 .

It is a cyclic number.

It is not a de Polignac number, because 193567842493 - 2³⁷ = 56128889021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193567822493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96783921246 + 96783921247.

It is an arithmetic number, because the mean of its divisors is an integer number (96783921247).

Almost surely, 2^193567842493 is an apocalyptic number.

It is an amenable number.

193567842493 is a deficient number, since it is larger than the sum of its proper divisors (1).

193567842493 is an equidigital number, since it uses as much as digits as its factorization.

193567842493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 61.

The spelling of 193567842493 in words is "one hundred ninety-three billion, five hundred sixty-seven million, eight hundred forty-two thousand, four hundred ninety-three".